.$$$ Temporary File
.$$A OS/2
.$$F OS/2 Database
.$$P OS/2 Notes
.$$S OS/2 Spreadsheet
.$D$ OS/2 Planner
.$DB DBase Temp File
.$ED Temp Editor File
.$VM Virtual Managers Temp File
._DD Norton Disk Doctor Recovered File
.000 (000-999) Sequentially Numbered Backup Files
.075 Ventura Publisher 75dpi Screen Characters
.085 Ventura Publisher 85dpi Screen Characters
.091 Ventura Publisher 91dpi Screen Characters
.096 Ventura Publisher 96dpi Screen Characters
.0B PageMaker Printer Font LineDraw Characters
.12M Lotus Smartmaster File
.123 Lotus File
.15U PageMaker Printer Font
.1PE TurboTax Form File
.1ST Information (e.g., README.1ST)
.286 Windows Standard Mode Driver
.2GR Windows EGA/VGA Screen Grabber
.301 Fax Data
.303 Seq-303 Settings
.320 Chromelion Demo Data File
.323 H.323 Internet Telephony
.340 Chromelion Demo Data File
.386 Windows Enhanced Mode Driver or Swap File
.3DM 3D Modeler File
.3DP Serif 3D Plus
.3DS 3D Studio Graphic
.3FX Corel Chart 3D Effect
.3GR Windows SVGA/XVGA Screen Grabber
.3IN MSN Setup Information
.4GE Informix 4GL Compiled Code
.4GL Informix 4GL Source
.4SW 4DOS Swap File
.4TH FORTH Program
.669 669 Tracker Module or Unis Composer Music File
.8 A86 Assembler Program File
.8BA Adobe PhotoDeluxe Plugin (also ends in E, F, I, X, & Y)
.8M PageMaker Math 8 Printer Font
.8U PageMaker Roman 8 Printer Font
.906 Calcomp Plotter File
.?q? Squeeze
.A UNIX Library or ADA Program
.A01 ARJ Multi-volume Compressed Archive (can be 01 to 99)
.A11 Graphic
.A3K Yamaha A3000 Sampler File
.A3M Unpackaged Authorware MacIntosh File
.A3W Unpackaged Authorware Windows File
.A4M Unpackaged Authorware MacIntosh File
.A4P Authorware File without runtime)
.A4W Unpackaged Authorware Windows File
.A5W Unpackaged Authorware Windows File
.A86 A86 Assembler Program File
.A_T A-Train
.AAM Authorware Shocked File
.AAS Authorware Shocked Packet
.AB6 AB Stat Data
.AB8 AB Stat Data
.ABC Flowchart
.ABD AmBiz Bonus Calculator Data File
.ABF Adobe Binary Screen Font
.ABK Corel Draw AutoBackup or Any Automatic Backup
.ABR Photoshop Brush
.ABS Abstracts
.ACA MS Agent Character File
.ACD Chromeleon Channel Raw Data or Sonic Foundry Acid Music File
.ACE The Ace Archiver Compressed File
.ACF MS Agent Character File
.ACG MS Agent Preview File
.ACL Corel Draw 6 Keyboard Accelerator
.ACM Audio Compression Manager Driver or Windows System File
.ACP MS Office Assistant Preview File
.ACR American College of Radiology File
.ACS MS Agent Character File
.ACT MS Office Actor Program File or FoxPro Action Diagram
.ACV OS/2 Audio Drivers
.AD AfterDark Screen Saver
.ADA ADA Program File
.ADB Ada Package Body or HP Organizer Appointment Database
.ADC Chromeleon Demo Data File
.ADD Adapter Device Driver
.ADE MS Access Project Extension
.ADF Adapter Description File or Admin Config File or
Amiga Disk File
.ADI AutoCAD Plotter File
.ADL MCA Adapter Description Library
.ADM After Dark Screen Saver Module
.ADN Add In Utility or MS Access Blank Project Template
.ADP FaxWorks Modem Setup File or Astound Dynamite File or MS Access Project
.ADR After Dark Random Screen Saver Module
.ADS ADA Package Specification
.ADX Approach Index File
.AF2 ABC Flowchart
.AF3 ABC Flowchart
.AFL Lotus Font
.AFM Outline Font Metric
.AFP Flowchart Symbol Palette
.AFT Flowchart Template
.AFW Flowchart Work Area
.AG4 Access G4 File
.AI Illustrator Vector Graphic
.AIF Knowledgeware Setup Information or Audio Interchange File
.AIM AOL Instant Messenger File
.AIO APL File Transfer Format
.AIR Align It! Resource File
.AIS Array of Intensity Samples (Graphic) or
Velvet Studio Instruments or ACDSee Image Sequence File
.AKF Acrobat Key File
.AKW RoboHELP Help Project Index File
.ALB JASC Image Commander Album
.ALL Arts & Letters Symbols and Characters or WP Printer Info
.ALT WP Menu File
.AMS Extreme's Tracker Module Format or Velvet Studio Module
.ANC Canon Computer Pattern Maker File
.ANI Animated Cursor
.ANL Project Analyzer Saved Analysis
.ANM Animation
.ANN Help Annotation
.ANS ANSI Graphic or MS Word Text and Layout
.ANT SimAnt for Windows Saved Game File
.APC Lotus Printer Driver Characters or Centura Team Developer Compiled
Application File
.APD Lotus Printer Driver or Centura Team Developer Dynamic
Application Library File
.APF Lotus Printer Driver Fonts or Acrobat Profile File
.API Lotus Printer Driver Info or Application Program Interface
.APL Centura Team Developer Application Library File
.APP R:Base, Symphony, DR-DOS, FoxPro (or other) Application or
Centura Team Developer Normal Mode Application File
.APR Lotus Approach 97 File
.APS MS Visual C++ File
.APT Centura Team Developer Text Mode Application File
.ARC Archive File or Compressed File
.ARI Aristotle Audio File
.ARJ Compressed Archive
.ART Clip Art File or Xara Studio Drawing or
Canon Crayola Art File or Another Ray Tracer Format or
AOL Johnson-Grace Compressed File
.ASA MS Visual InterDev File or Active Server Document
.ASC ASCII Text File or PGP Armored Encrypted File
.ASD MS Word Automatic Backup or Lotus Screen Driver or
MS Advanced Streaming Format Description File
.ASE Velvet Studio Sample
.ASF MS Active Streaming File or Statgraphics Data or
Lotus Screen Font or APL*Plus/PC APL Shared File
.ASH Assembler Header
.ASI Assembler Include
.ASK askSam Data
.ASM Assembler Source Language
.ASO Assembler Object or Astound Dynamite Objects
.ASP Active Server Page or Procomm Plus ASPECT Program or
Astound Presentation File
.ASR Automap Route
.AST Astound Multimedia File or Claris Works Assistant File
.ASV DataCAD Autosave File
.ASX Active Streaming File or Cheyenne Backup Script or
MS Advanced Streaming Redirector File or Video File
.ATT AT&T Group 4 Bitmap (fax)
.AU Music File (various)
.AVB Inculan Anti-Virus Virus Infected File
.AVI Audio Video Interleave File
.AVR Audio Visual Research Sound File
.AVS Animation File or Application Visualization System Format
.AWD Faxviewer Document
.AXR Telsis Digital Audio File
.B1J BookJones
.B1S BookSmith
.B3D 3D Builder File
.B4 Helix Nuts and Bolts File
.B64 Base 64 MIME-encoded File
.BAC Backup
.BAD Rime Mailer Address File
.BAK Backup
.BAS BASIC Language Source or Basic Module
.BAT Batch Processing
.BBM Image File
.BCK Backup
.BCO Bitstream Fontware File
.BDF West Point Bridge Designer File
.BEZ Bitstream Fontware File
.BFC Briefcase File
.BG Backgammon for Windows Game
.BGI Borland Graphic Interface
.BGL Flight Simulator Scenery File
.BI Binary File
.BIB Bibliography
.BIF GroupWise Initialization File
.BIG Chinese (old version)
.BIK BioCharter Profile Backup File
.BIN Binary File
.BIO BioCharter Profile File
.BIT Bitmap Image
.BK Backup
.BK! Backup
.BK$ Backup
.BK1 Backup (Can be 1 to 9)
.BKI Backup Index
.BKP Backup
.BKS Bookshelf Backup or IBM BookManager Read Bookshelf
.BLD BASIC Bload Graphics
.BLK WP Temp File
.BLT Wordperfect for DOS File
.BM Graphic (bitmap)
.BM1 Apogee BioMenace Data File
.BMF Image File
.BMI Buzz Instrument
.BMK Help Bookmark
.BMP Windows OS/2 Bitmap Graphics
.BMW Buzz Music File with Waves
.BMX Buzz Music File
.BNK Adlib Instrument Bank or SimCity Game File
.BOO Image File or Book or Compressed Archive File
.BOX Notes Mailbox
.BPL Delphi Library
.BPT Bitmap Master File
.BQY BrioQuery File
.BR3 Bryce 3D Scene File
.BRC Bryce 2 Scene File
.BRX Multimedia Browsing Index
.BS_ MS Bookshelf Find Menu Shell Extension
.BS1 Apogee Blake Stone Data File
.BSC Boyan Script or MS Developer Studio Browser File
.BSP Quake Map
.BSV BASIC Bsave Graphics
.BTM 4DOS Batch To Memory Batch File
.BTN ButtonWare File
.BUD Quicken Backup
.BUN CakeWalk Audio Bundle File
.BUP Backup
.BV1 Backup (Can be 1 to 9)
.BW SGI Black and White Image
.BYU Movie File
.C C Program File
.C00 Ventura Print File
.C01 Typhoon Wave File
.C86 C86 C Program
.CA7 Beta 44 Job File
.CAB Cabinet File (Microsoft installation archive)
.CAD Softdesk Drafix CAD File
.CAL SuperCalc Worksheet or Calendar File or CALS compressed bitmap
.CAM Casio Camera Graphic
.CAP Ventura Caption or Telix Session Capture or
Compressed Music File
.CAS Comma-delimited ASCII File
.CAT Catalog or Quicken IntelliCharge Categorization File
.CB MS Clean Boot File
.CBI IBM Mainframe Column Binary Formatted File
.CBL COBOL Program
.CBT Computer Based Training
.CC C++ Program File
.CCA CC:Mail File
.CCB Visual Basic Animated Button Configuration
.CCC Chat
.CCF OS/2 Multimedia Viewer Configuration File
.CCH Corel Chart
.CCM Lotus CC:Mail Mailbox
.CCO CyberChat Data File
.CCR Chat Room Shortcut
.CCT Macromedia Director Shockwave Cast
.CDA CD Audio Track
.CDB Turbo C Database
.CDC Chromeleon Driver Configuration Plugin
.CDD Chromeleon Device Driver
.CDF Comma Delimited Format or Cyberspace Description Format or
MS Channel Definition Format
.CDI Phillips Compact Disk Interactive Format
.CDR Corel Vector Graphic or Raw Audio-CD Data
.CDT Corel Draw Template
.CDX Compound Index or Corel Draw Compressed Drawing or
MS Visual Foxpro Index or Active Server Document
.CEG Continuous Edge Graphic
.CEL Autodesk Animator Graphic or CIMFast Event Language File
.CER Certificate File
.CEX The Currency Exchanger Rate File
.CFB Comptons Multimedia File
.CFG Configuration (various)
.CFL Corel Flow File
.CFM Corel FontMaster or Cold Fusion Template File
.CGA Ventura CGA Screen Characters
.CGI Common Gateway Interface Script
.CGM Computer Graphics Metafile
.CH Clipper Header or OS/2 Configuration File
.CH3 Harvard Chart
.CHI Chiwriter Document
.CHJ Help Composer Project
.CHK CHKDSK/SCANDISK Output or WP Temp File
.CHL Chromeleon Channel Raw Data
.CHM Compiled HTML Help
.CHP Ventura Publisher Chapter
.CHR Character or Font File
.CHT Cheat Machine Data File or ChartViewer File or
Harvard Graphics Vector File
.CIF Ventura Chapter Information
.CIL Clip Gallery Download Package
.CIM Sim City 200 File
.CIN OS/2 Change Control File
.CIT Intergraph Scanned Image
.CK1 iD/Apogee Commander Keen 1 Data File
.CK2 iD/Apogee Commander Keen 2 Data File
.CK3 iD/Apogee Commander Keen 3 Data File
.CK4 iD/Apogee Commander Keen 4 Data File
.CK5 iD/Apogee Commander Keen 5 Data File
.CK6 iD/Apogee Commander Keen 6 Data File
.CL4 Easy CD Creator Layout File
.CLL Crick Software Clicker File
.CLP Windows Clipboard or Picture
.CLR WinEdit Colorization Word List
.CLS Visual Basic Class Module
.CMB Chromeleon Backup Archive
.CMD OS/2, WinNT Command File or COS CP/M Command File or
dBase II Program File
.CMF Creative Music File or Corel Metafile
.CML Cheat Machine Library File (Windows) or PADGen Company Info File
.CMP Leadview Bitmap or Open Access File or Address Document
.CMV Corel Move Animation
.CMX Corel PhotoPaint Image or Corel Presentation Exchange Image or
Apple Viewer File
.CNF Configuration (various) or SpeedDial
.CNM Windows Application Menu Options and Setup File
.CNQ Compuworks Design Shop File
.CNT Help File Contents (and other contents needs)
.CNV Data Conversion File or WP Temporary File
.COB COBOL Program File or Caligari Truespace Format or
TrueSpace2 Object
.COD Code List or Compiler Program Code
.COD Multiplan Data File or dBase Template Source File
.COL Autodesk Color Palette or Multiplan Spreadsheet
.COM Command (Executable file)
.CON Knowledgeware Consolidation File
.CPD Fax Coversheet or Corel PrintOffice File
.CPE Fax Coversheet
.CPI Code Page Information or ColorLab Image
.CPL Control Panel Extension or Corel Color Palette
.CPO Corel Print House File
.CPP C++ Program
.CPR Corel Presents Presentation or Knowledge Access Graphics
.CPS Antivirus Checksum File
.CPT Macintosh Compressed File or Corel Photo-Paint Image
.CPX Control Panel Applet or CryptaPix Encrypted Image or
Corel Presentation Exchange Compressed Drawing
.CRD Cardfile
.CRF Zortech C++ Cross-Reference File
.CRL Certificate Revocation List
.CRP Database or Corel Presents Run-Time Presentation
.CRT Certificate File
.CRY Crypto Chat II Encrypted Notebook-content
.CSC Corel Script
.CSD Bitstream Fontware File
.CSK Claris Works
.CSM Borland C++ Symbol File
.CSP PC Emcee On-Screen Image
.CSQ Foxpro Queries
.CSS Hypertext Cascading Style Sheet
.CST Macromedia Director Cast File
.CSV Comma-Separated Variables
.CT Scitex CT Bitmap
.CTF TIFF Compressed File or
Symphony Character Code Translation
.CTL Setup Information or User Control
.CTX Compressed Text or User Control Binary File
.CTY SimCity City File
.CUE MS Cue Cards Data
.CUF Turbo C Utilities Form Definition
.CUL IconForge Cursor Library
.CUR Cursor
.CUT Dr. Halo Bitmap Graphic
.CV Corel Versions Archive or MS CodeView Information
.CV4 Codeview Colors
.CVP WinFax Cover Page
.CVT dBase Converted Database
.CVW Codeview Colors
.CWE Crossword Express
.CWK Claris Works Data
.CWS Claris Works Template
.CXT Macromedia Director Protected Cast File
.CXX Zortech C++ Program
.D Dialect Source Code File
.D3D CorelDream 3D File
.D8A AmBiz Productivity Pak Catalog
.DAD Chromeleon Channel Raw Data
.DAT Data (multiple programs)
.DB Paradox Database
.DB2 dBase II File
.DBC MS Visual Foxpro Database Container
.DBF Database (multiple programs) [started as dBASE]
.DBT Database Text File [dBASE]
.DBX Database (multiple programs) or DataBeam Image or
MS Visual Foxpro Table
.DC5 DataCAD Drawing File
.DCA Active Designer Cache or IBM Text File
.DCM DCM Module Format
.DCP Delphi Compiled Packages
.DCR Shockwave File
.DCS Quark Desktop Color Separation Specification
.DCT Dictionary (various) or MS Visual Foxpro Database Container
.DCU Delphi Compiled Unit
.DCX FAX Image or Bitmap Graphics or Macros or
MS Visual Foxpro Database Container
.DD Macintosh Compressed Archive or Disk Doubler
.DDE Dynamic Data Exchange
.DDF BTRIEVE Database or Bitstream Fontware File
.DDI DiskDupe Image or Disk Doubler Image
.DDP OS/2 Device Driver Profile File
.DEF Definitions or Defaults or SGML Tag Definition or
SmartWare II Data File or C++ Definition
.DEL Data
.DEM Demonstration or USGS Map
.DEP Setup Wizard Dependency
.DER Certificate File
.DES Description or Text
.DEV Device Driver or Device Independent TeX or LaTeX File
.DFD File Flow Diagram Graphic
.DFM Delphi Forms or File Flow Diagram Model
.DFV Word Print Format Template
.DG Autotrol Graphics
.DGC TurboTax-related File
.DGN Microstation95 CAD Drawing File or Intergraph Graphics
.DGS AT Advanced Diagnostics File
.DHP Dr. Halo PIC
.DIB Device-Independent Bitmap Graphic
.DIC Dictionary (various)
.DIF Data Interchange Format
.DIG Text Document or Digilink Format or Sound Designer Audio File
.DIR Procomm Plus Dialing Directory or Macromedia Director File
.DIS Corel Draw Thesaurus
.DIZ Data In Zip File (a text description file)
.DL Animations file
.DLD Lotus File
.DLG Dialog Resource Script or C++ Dialogue Script
.DLL Dynamic Link Library
.DLS Downloadable Sounds
.DMF Delusion/XTracker Digital Music File
.DMO Demo
.DMP Dump
.DMS Compressed Archive
.DNE Darn v5+ (Windows) Events List
.DOB User Document Form File
.DOC Document or Documentation (many programs/formats)
.DOS Text File or DOS Specification Info
.DOT Word Document Template or Corel Lines-Definition
.DOX Text File or MultiMate Document or User Document Binary Form File
.DPK Delphi Package File
.DPL Borland Delphi 3 Packed Library
.DPP Serif DrawPlus Drawing
.DPR Borland C++ (or Delphi) Default Project
.DPX Digital Moving Picture Exchange
.DQY MS Excel ODBC Query File
.DRN Darn for DOS
.DRS WordPerfect Driver Resource
.DRV Device Driver
.DRW Draw or Drawing or Micrografix Vector Graphic
.DS4 Designer Graphics (ver 4)
.DSF Micrografx Designer or Delusion/XTracker Digital Sample
.DSG Doom Saved Game
.DSK Delphi Desktop
.DSM Delphi Symbol File or Digital Sound Module Tracker Format or
Dynamic Studio Music Module
.DSN ODBC Data Source or
SureThing Office Labeler (formerly DesignExpress) Document
.DSP Dr. Halo Graphic Screen Driver or MS Developer Studio Project
.DSQ Corel QUERY File
.DSR WP Driver or Active Designer File
.DST Embroidery Machines Graphics File
.DSW MS Developer Studio Workspace
.DSX Active Designer Binary File
.DTA Data (Several programs may use this one)
.DTD SGML Document Definition File
.DTF Q&A Database
.DTM DigiTrekker Module
.DTP SecurDesk! Desktop
.DUN Dial-Up Network
.DV DESQview Script or Digital Video File
.DVC Lotus File
.DVI Device Independent Document
.DVP DESQview Program Information or AutoCAD Device Parameter
.DVR Device Driver
.DWC Compressed Archive
.DWD DiamondWare Digitized File
.DWG AutoCAD Drawing Database
.DWL Dweep Game Levels
.DX Document Imaging File
.DXB Drawing Interchange Binary
.DXF AutoCAD Drawing Interchange Format
.DXR Macromedia Director Protected Movie File
.DYN Lotus File
.ED5 EDMICS Graphics File
.EDA Ensoniq ASR Disk Image
.EDD FrameMaker Element Definition Document
.EDE Ensoniq EPS Disk Image
.EDK Ensoniq KT Disk Image
.EDQ Ensoniq SQ1/SQ2/KS32 Disk Image
.EDS Ensoniq SQ80 Disk Image
.EDV Ensoniq VFX-SD Disk Image
.EEB WP Equation Editor Button Bar
.EFA Ensoniq ASR File
.EFE Ensoniq EPS File
.EFK Ensoniq KT File
.EFQ Ensoniq SQ1/SQ2/KS32 File
.EFS Ensoniq SQ80 File
.EFT Chiwriter High Res Screen Characters
.EFV Ensoniq VFX-SD File
.EGA Ventura EGA Screen Characters
.ELI Encyclopedia Article List
.ELT Event List Text
.EMB Everest Embedded Bank File
.EMD ABT Extended Module
.EMF Extended Windows Metafile Format
.EML MS Outlook Express Electronic Mail
.EMS PC Tools Enhanced Menu System Config
.EMU Emulation
.ENC Encoded or Knowledgeware Encyclopedia or Encore File
.END Corel Arrow Definition
.ENG Dictionary
.ENR Enroute Toolath
.ENV WP Environment
.EPS Encapsulated PostScript or Ventura Printer Font
.EQN WP Equation
.ER1 ERWin File
.ERD Entity Relationship Diagram
.ERM Entity Relationship Diagram Model
.ERR Error Log (various)
.ERX ERWin File
.ESH Extended Shell Batch File
.ESI Esri Plot File
.EUC Japanese (Kanji)
.EUI Ensoniq EPS Family Compacted Disk Image
.EVT PC Tools Event File Scheduler
.EVY Envoy Document
.EWL MS Encarta Document
.EX3 Harvard Device Driver
.EXC QEMM Exclude File or REXX Program or
MS Word Exclusion Dictionary or Text Document
.EXE Executable File
.EXT Norton Commander Extension File
.EYB Encyclopedia Yearbook File
.F Compressed Archive File (UNIX) or FORTRAN Program
.F2R Farandoyle Linear Module Format
.F3R Farandoyle Blocked Linear Module Format
.F32 Raw 32-bit IEEE Floating Point Values
.F64 Raw 64-bit IEEE Floating Point Values
.F77 FORTRAN 77 Program
.F90 FORTRAN Program
.FAC FACE Graphic
.FAQ Frequently Asked Questions
.FAR Farandoyle Tracker Module
.FAV MS Outlook Bar Shortcuts
.FAX Fax File
.FBC FamilyTree Compressed Backup File
.FBK Navison Financials Backup or FamilyTree Backup File
.FBM Fuzzy Bitmap
.FC Harvard Dictionary
.FCD Virtual CD-ROM
.FCT Foxpro Catalog
.FD FORTRAN Declarations or Dataflex Field Offsets Compiler
.FDB Navison Financials Database or Art Explosion Portfolio Catalog File
.FDF Adobe Acrobat Forms Document
.FDX Force Index
.FEM CADRE Finite Element Mesh File
.FEX Focus File
.FFA MS Fast Find File
.FFF GUS PnP Bank
.FFL MS Fast Find File
.FFO MS Fast Find File
.FFT DCA/FFT Final Form Text
.FFX MS Fast Find File
.FGA Folder Guard Attributes
.FGD Folder Guard Data
.FGP Folder Guard Passwords File
.FH3 Aldus Freehand 3 Drawing
.FI FORTRAN Interface File
.FIF Fractal Image Format
.FIG REND386/AVRIL Graphic
.FIL dBase Files List Object
.FIL WP Overlay
.FIN WP Print Format Text
.FIT FITS Graphic
.FKY Foxpro Macro
.FLA Macromidia Flash Movie
.FLB Papyrus Format Library
.FLC AutoDesk FLIC Animated Picture
.FLD Charisma Folder or Hijaak Thumbnail Folder
.FLF Corel Paradox Delived Form or OS/s Driver File or
Navison Financials License File
.FLI Autodesk FLIC Animation
.FLL Foxpro Library
.FLM AutoCAD Film
.FLR Live3D File
.FLT Corel Graphic Filter or StarTrekker Music Module or
MulitGen Open Flight File
.FLX Image or Dataflex Ordered Binder
.FM Adobe FrameMaker Document
.FM1 Lotius Spreadsheet File
.FM3 Harvard Device Driver or 1-2-3 Format File
.FMB WP File Manager Button Bar or
Oracle Binary Form Source Code
.FMD Open Access File
.FML GetRight File Mirror List
.FMO dBase Ordered Format
.FMT Format File or Style Sheet or Oracle Text Form Format or
MS Schedule+ Print File
.FMV Frame Vector Metafile
.FMX Oracle Executable Form
.FND MS Explorer Saved Search
.FNG Font Navigator Group File
.FNK FunkTracker Module
.FNO Folio Infobase
.FNT Font File
.FOG Fontographer Font
.FON Font File
.FOR FORTRAN Source
.FOT Font-related File
.FOX FoxBase File
.FP FileMaker Pro File
.FP1 Flying Pigs for Windows Data
.FP3 FileMaker Pro File
.FPT FileMaker Pro File
.FPT FoxPro Memo Fields
.FPX FlashPix Bitmap
.FRM Form File or FrameMaker or FrameBuilder Document or
Oracle Executable Form or Visual Basic Form or
WordPerfect Merge Form or DataCAD Symbol Report File
.FRS WordPerfect Graphics Driver
.FRT FoxPro Report File
.FRX Visual Basic Binary Form File or FoxPro Report File
.FSF Convert It! Factor File or fPrint Audit Tool File
.FSL Borderland's Paradox 7 Forms or Corel Paradox Saved Form
.FSM Farandoyle Sample Format
.FT Lotus Notes Full Text Index
.FTG Windows Help Full-text Search Group File
.FTM Family File
.FTS Windows Help Full-Text Search Index File
.FTW Family File
.FW2 Framework II File
.FW3 Framework III File
.FW4 Framework IV File
.FXD WinFax Sent Document (TIFF format)
.FXI File-Ex File
.FXP FoxPro Compiled Source
.FXR WinFax Received Document (TIFF format)
.FZB Casio FZ-1 Bank Dump
.FZF Casio FZ-1 Full Dump
.FZV Casio FZ-1 Voice Dump
.G4 GTX RasterCAD File
.GAL Gallery of Pictures or Corel Multimedia Manager Album
.GB Chinese
.GBK Interbase Database Backup
.GC Sierra Print Artist File
.GCA GOCA Graphics File
.GCD Generic CADD Drawing
.GCF WinXComp Grouped Compressed File
.GCP Ground Control Point File (map projection)
.GDB Interbase Database
.GDM Bells, Whistles, and Sound Boards Module
.GDS Image File
.GED GEDCOM Family History File or Graphic Environment Document or
Arts & Letters Graphics File
.GEM GEM (a desktop interface) File
.GEN Ventura-Generated Text File or Chromeleon Generic Driver Configuration
.GEO VideoScope File
.GFC Patton & Patton Flowcharting 4 File
.GFI Genigraphics Graphics Link Presentation
.GFX Genigraphics Graphics Link Presentation
.GHO Symantec Ghost Disk Image File
.GID Windows Help Index File
.GIF Graphic Interchange Format
.GIM Genigraphics Graphics Link Presentation
.GIX Genigraphics Graphics Link Presentation
.GKH Ensoniq EPS Family Disk Image
.GKS Gravis GripKey Document
.GL Animated Picture
.GLY Glossary
.GNA Genigraphics Graphics Link Presentation
.GNT Micro Focus Generated Code
.GNX Genigraphics Graphics Link Presentation
.GP3 CCITT Group 3 File (fax)
.GP4 CCITT Group 4 File (fax)
.GPP Serif GraphicsPlus Object
.GR2 Windows Screen Driver
.GR3 Windows 3.0 Screen Grabber
.GRA Flight Simulator File or MS Graph Chart
.GRB MS-DOS Shell Monitor
.GRD Gradebook Power File or Map Projection Grid File
.GRF Graph or Golden Software Graph File or Grafix Idea File
.GRP Program Manager Group
.GRY Picture File
.GSM Raw GSM 6.10 Audio Stream or US Robotics Modem File
.GSP Geometer's Sketchpad Material File
.GT2 Graoumftracker Music Module
.GTK Graoumftracker Music Module
.GTY Gibson Tray File
.GWX Genigraphics Graphics Link Presentation
.GWZ Genigraphics Graphics Link Presentation
.GX1 Show Partner Graphics File
.GX2 Show Partner Graphics File
.GZ Gzip Compressed Archive
.H Header (Usually C Compiler)
.HA Compressed Archive
.HAM Image File
.HBK Mathcad Handbook
.HDF Hierarchical Data Format File
.HDL Procomm Plus Alternate Download File Listing
.HDR Procomm Plus Message Header
.HDR PC-File+ Database Header
.HDX Help Index
.HED HighEdit Document
.HEL MS Hellbender Saved Game
.HEX Hex Dump or Macintosh BinHex 2.0 File
.HFI HP Font Info
.HFX HotFax File
.HGL HP Graphics Language
.HH C++ Header or Help Topic Map File
.HHC Table of Contents File (HHW Application) or TurboTax Contents File
.HHH Power C Precompiled Header
.HHK Help Workshop Index File
.HHP Procomm Plus Help Data
.HHP HTML Help Project
.HLP Windows Help File
.HMM Procomm Plus Alternate Mail Read Option Menu
.HOF Hall Of Fame (scores)
.HOG Lucas Arts Dark Forces WAD File
.HPF PageMaker HP LaserJet Fonts
.HPG Hewlett-Packard Graphics (plotter)
.HPI Gem Font Information
.HPJ Help Project File
.HPK Compressed Archive
.HPL HP Graphics File
.HPP C++ Program Header
.HPR RoboHELP Configuration File
.HQX Binhex Text Conversion File (Macintosh)
.HRL Herolab EasyWin32
.HPM Procomm Plus Alternate Main Menu
.HPP Zortech C++ Header
.HPR RoboHelp Configuration
.HQX Macintosh BinHex 4 Compressed Archive
.HRM Procomm Plus Alternate Main Menu
.HRX Herolab EasyWin32
.HRZ Image File
.HST History or Host
.HT Hyperterminal
.HTA Hypertext Application (run apps from HTML doc)
.HTM Hypertext Markup Language (HTML)
.HTT Hypertext Template
.HTX Hypertext File or Internet Database Connector File
.HWP Hangul Word Processor File
.HXM Procomm Plus Alternate Protocol Selection Menu or
Descent2 HAM File
.HXX C++ Header
.HYC WordPerfect Hyphenation File
.HYD WP Hyphenation Dictionary
.HYP Hypertext or Hyphenation or Compressed Archive
.HZ Chinese
.IBA mde infoHandler Infobase File
.IBM Image File
.ICA Citrix File or IOCA Graphics File
.ICB Targa Bitmap
.ICC Kodak Printer Image
.ICE Archive File
.ICL Icon Library File (various)
.ICM Image Color Matching Profile File
.ICN Icon Program
.ICO Icon
.ICS Outlook Calendar File
.ID Disk Identification File
.IDB MS Developers Intermediate File
.IDD MIDI Instrument Definition
.IDE Integrated Development Environment Configuration File
.IDF MIDI Instruments Drivers File
.IDQ Internet Data Query File
.IDX Index (multiple programs)
.IEF Image File
.IFF Graphic, Sound (Interchangeable File Format)
.IFS OS/2 System File
.IGF Inset Systems Metafile
.IGS IGES-Format
.IIF QuickBooks for Windows Interchange File
.III Intel Phone Compatible
.IL Icon Library
.IM8 Sun Raster Graphic
.IMA WinImage File
.IMG Bitmap Graphic (several programs)
.IN3 Harvard Input Device Driver
.INC Include File (various)
.IND dBase IV or DataPerfect Index
.INF Information or Setup File
.INI Initialization file (many)
.INK Pantone Reference File
.INP Oracle Source Code
.INS Internet Communication Setting or WordPerfect File or
Ensoniq EPS Family Instrument or Sample Cell / II Instrument or
InstallShield Script or X-Internet Sign-up File
.INT Borland Interface Units or Foxpro Code Page or
Intermediate Code used for syntax checking (various)
.INX Foxbase Index
.IO Compressed Archive
.IOB Imagine File
.IOF Findit Document
.ION Text Program/Installation Description
.IPL Corel Pantone Spot Reference Palette
.IPX Interactive Pictures Corporation AV File
.IQY Excel Web Query
.IRS WordPerfect File
.ISD RapidFile Dictionary
.ISH Compressed Archive File
.ISO File List for CD-ROM
.ISP X-Internet Sign-up File or Internet Communication Settings
.ISS InstallShield Response File
.IST Digitrakker Instrument File
.ISU InstallShield Uninstall Script or Netscape File
.IT Impulse Tracker Music Module
.ITI Impulse Tracker Instrument
.ITS Internet Document Set or Impulse Tracker Sample
.IV VRML File or Open Inventor File
.IVF Indeo Video File
.IW Iconware Application or Idlewild Screensaver
.IWA IBM Writing Assistant Text
.IWP Wang Text File
.IX Framemaker Index File
.J62 Ricoh Camera File
.JAR Java Archive File
.JAS Compressed Graphic
.JBC Jam Byte-Code Hex File (8051 Microprocessor File)
.JBF PSP Browser
.JFF JPEG Image
.JFI Image File
.JIF JPEG Image
.JIS Japanese
.JMP SAS JMPDiscovery Chart-to-statistics File
.JN1 Epic MegaGames Jill of the Jungle Data File
.JNK Junk (temporary file)
.JOB Job File or Task Scheduler Task Object
.JOR Journal File
.JPC Picture File
.JPE JPEG Image
.JPG JPEG Image
.JS JavaScript Source Code
.JSP Java Servlet or Java Server Page
.JT JT Fax
.JTF JPEG Image
.JW Justwrite Text
.JWL Justwrite Text File Library
.JZZ Jazz Spreadsheet
.K25 Kurzweil 2500 Sample
.KAR Karaoke MIDI File
.KBD Keyboard Layout
.KBI Keirsey-Bates Temperament Sorter Index
.KBM Keyboard Layout
.KBP Keirsey-Bates Temperament Sorter Profile
.KBR Keirsey-Bates Temperament Sorter Data
.KDC Kodak Photo-Enhancer
.KEX KEDIT Profile File
.KEY Keyboard Macros or DataCAD Icon Toolbar File
.KFX KoFax Group 4 Image
.KIZ Kodak Digital Postcard File
.KKW RoboHELP Keyword Help project Index File
.KMP Korg Trinity KeyMaP File
.KQP Konica Camera File
.KR1 Kurzweil 2000 Sample (multi-floppy)
.KRZ Kurzweil 2000 Sample
.KSC Korg Trinity Script
.KSE Keepsake Studio Export File
.KSF Korg Trinity Sample
.KSH Prodigy Internet Registration File
.KTT KeyText Data File
.KYB Keyboard Layout
.KYE Kye Game Data
.L LEX Program File or Link Instructions or LISP Program File
.LAB Mailing Labels
.LAY Applause Word Chart Layout
.LBG dBase IV Label Generator
.LBL Labels
.LBM Deluxe Paint Bitmap Graphic
.LBO dBase IV Ordered Labels
.LBR Compressed Archive File or Lotus Screen Driver
.LBT Foxpro Label Memo
.LBX Foxpro Label
.LCF Linker Control File
.LCN WP Dictionary File
.LD Telix Long Distance Codes
.LD1 dBase Overlay File
.LDB MS Access Lock File or TrueVector Log Database
.LDL Corel Paradox Delivered Library
.LEG Legacy Graphic Format
.LES Learn Lesson File or Logitech Entertainment Game Profile
.LET Letter
.LEX Lexicon (dictionary file)
.LFT Chiwriter Laser Printer Font or 3D Studio Loft File
.LGC Program Use Log File (for Windows Program Use Optimization)
.LGO MS Windows Logo Driver
.LHA Compressed Archive File (LZH)
.LHS Literate Haskell Source File
.LHW Compressed Archive File
.LHZ LHA Compressed Archive File
.LIB Program Library (diverse programmers' languages)
.LIC License File (various Shareware)
.LIF Compressed Archive File or HP Logical Interchange Format File
.LIN AutoCAD Line Art
.LIS Program Listing or Structured Query Reporting (SQR) Output
.LJ Text File for HP LJ II Printer
.LLC LapLink Saved Connection File
.LLX Laplink Exchange Agent
.LM8 Picture File
.LND 3D Landscape Data
.LNK Linker File or Windows Shortcut File
.LOG Log File (many different programs)
.LP LP88 Linear Programming for the IBM-PC File
.LPB LP88 Linear Programming for the IBM-PC File
.LPD Helix Nuts and Bolts File
.LRC Intel Video Phone File
.LRF Linker Response File
.LRS WP Language Resource File
.LSF Streaming Audio/Video File
.LSL Corel Paradox Saved Library
.LSP LISP Program File
.LST Listing or List (e.g., packing list) or PowerPoint File
.LSX Streaming Audio/Video Shortcut
.LTR Letter
.LU ThoughtWing Library Unit File
.LVL Parallax Miner Descent/D2 Level Extension
.LWP Lotus Wordpro 96/97 File
.LWV MS Linguistically Enhanced Sound File
.LYR DataCAD Layer File
.LYT TurboTax Log File
.LZH Compressed Archive File
.LZS Compressed Archive File or Skyroads Data File
.LZW Compressed Archive File
.LZX Compressed File
.M Matlab Function or Macro Source or Mathematica File
.M18 Accolade Golf Course File
.M1V MPEG File
.M3 ModuleA 3 Program File
.M3D 3D Animations Macro or Corel Motion 3D Animation
.M3U MPEG URL
.MA3 Harvard Macro
.MAC MacPaint Bitmap Graphic or Macro (various)
.MAD MS Access Module Shortcut
.MAF MS Access Form Shortcut
.MAG Picture File or MS Access Diagram Shortcut
.MAI Mail
.MAK Make File (compiler project file)
.MAM MS Access Macro Shortcut
.MAN Manual
.MAP Image or Color Palette or Micrografx Format Data or
Linker Map or Duke Nukem WAD File
.MAQ MS Access Query Shortcut
.MAR MS Access Report Shortcut
.MAS Focus Master Data Definition or
Microsoft Access Stored Procedures or
Lotus Freelance Graphics Smartmaster File
.MAT Sound File or Matlab Variables Binary File or MS Access Table Shortcut
.MAV MS Access View Shortcut
.MAW MS Access Data Access Page
.MAX Kinetix's 3D Studio MAX Scene or Paperport File or
OrCAD Layout File
.MAZ Hover Maze Data or Division's dVS/dVISE File
.MB Paradox Memo Holder
.MB1 Apogee Monster Bash Data File
.MBF MS Money Backup File
.MBK dBase IV Multiple Index Backup
.MBX Mailbox Message File (Outlook v1-4 or Eudora)
.MCC Mathcad Configuration or Dialer10 Calling Card
.MCD Mathcad Document
.MCF Mathcad Font
.MCI MCI Command Set
.MCL Multimedia Manager Collection File
.MCP Mathcad Printer Driver
.MCR DataCAD Keyboard Macro File
.MCS MathCAD Format File
.MCW Word for Macintosh Text File
.MCX Graphic File
.MD Compressed Archive File
.MDA MS Access Add-in or MS Access 2 Workgroup
.MDB MS Access Database or MS Access Application
.MDE MS Access Database File
.MDF Menu Definition File
.MDL Digitrakker Music Module or Quake Model File
.MDM Telix Modem Definition
.MDN MS Access Blank Database Template
.MDP MS Developer Studio Project
.MDT MS Access Add-in Data
.MDW MS Access Workgroup Information
.MDX dBase IV Multiple Index
.MDZ MS Access Wizard Template
.ME Information (e.g., READ.ME)
.MEB WP Macro Editor Bottom Overflow File
.MED WP Macro Editor Delete Save or OctaMED Tracker Module
.MEM WP Macro Editor Macro or Memory File of Variables
.MEN Menu
.MEQ WP Macro Editor Print Queue
.MER WP Macro Editor Resident Area or Data Interchange Format
.MES Message or WP Macro Editor Work Space
.MET WP Macro Editor Top Overflow File or
Presentation Manager Meta File or OmniPage Document
.MEU DOS Shell Menus
.MEX Matlab Executable Command
.MF MetaFont Text File
.MFF MIDI File Format
.MGC MGCSoft Equation Editor File
.MGF Image File or Micrografx Font or
Materials and Geometry Format File
.MGM MGCSoft Equation Editor Macro File
.MH Graphic File
.MHG Multimedia File
.MHT MS MHTML Document
.MI Miscellaneous
.MIC MS Image Composer File
.MID MIDI File
.MIF MIDI Instrument or Adobe FrameMaker Interchange Format
.MIL Group 4 Fax File
.MIM Multi-Purpose Internet Mail Extensions (MIME) File
.MIX Power C Object File or PhotoDraw 2000 File or
Command & Conquer Movie/Sound File
.MK Make File
.MKE Make File
.MKI Picture File
.MLB Macro Library
.MLI Encyclopedia Media List or 3D Studio's Material-Library File
.MLS Miles Sound Tools Compressed DLS
.MMC Media Catalog
.MME Multi-Purpose Internet Mail Extensions (MIME) File
.MMF Meal Master Format or MS Mail File
.MMM Animation MS Multimedia Movie
.MMP MindManager Player Play List File
.MMS Miles Sound Tools (Midi+DLS/MLS)
.MMZ MusicMatch Theme File
.MN2 Descent2 Mission File
.MND AutoCAD Menu Program File or MNI Mandelbrot for Windows
.MNG Animation Shop Animation or Multi-image Network Graphics
.MNT Foxpro Menu Memo
.MNU Menu File (various)
.MNW Menu File (various)
.MNX AutoCAD Compiled Menu File or Foxpro Menu
.MNY MS Money File
.MOB Device Definitions
.MOD Music File or ModuleA-2 Program File or
Windows Kernel Module or Amiga and PC Tracker Module or
MS Multiplan Spreadsheet
.MOV QuickTime Video Clip or Apple QuickTime Audio
.MOZ Netscape Temp File
.MP Multiplan File
.MP1 MPEG Audio Stream, Layer I
.MP2 MPEG Audio Stream, Layer II
.MP3 MPEG Audio Stream, Layer III
.MPA MPEG Audio Stream, Layer I, II or III
.MPC MS Project Calender
.MPD Mini Port Driver
.MPE MPEG Movie Clip
.MPG MPEG Animation or MPEG 1 System Stream
.MPJ RoboHTML Project
.MPM WP MathPlan Macro
.MPP MS Project File or CAD Drawing File
.MPQ Blizzard Game Data File
.MPR Foxpro Program
.MPS Multimedia File
.MPT MS Project Template File
.MPV MS Project View
.MPX Foxpro Compiler Menu or MS Project Export File
.MRB Multiple Resolution Bitmap Graphic
.MRI MRI Scan
.MRK Informative Graphics Markup File
.MRS WP Macro Resource File
.MS Checksum File for Anti-Virus
.MSA Magic Shadow Archive
.MSG Program Message or OzWin Message/Mail File or MS Mail Message
.MSH MASH (The Microsoft Agent Scripting Helper)
.MSI Windows Installer File
.MSK Autodesk Mask File
.MSN MS Network Document or Descent Mission File
.MSP MS Paint Graphic File or Windows Installer Patch
.MST Minispecification or Windows SDK Setup Script
.MSW Word Text File
.MTH Derive Math File
.MTM Sound File or MultiTracker Music Module
.MTV Picture File
.MTW Minitab Data File
.MU Quattro Menu
.MUL Ultima Online Game
.MUP Music Publisher File
.MUS Audio File
.MVB Database or MS Multimedia Viewer File
.MVF Movie Stop Frame File
.MWP Lotus Wordpro 97 Smartmaster File
.MXT MS C
.MYS Myst Saved Game
.MZ MOZART Music Document
.MZT MOZART Template File
.NAN Nanoscope File
.NAP NAP Metafile Vector Image
.NAV MSN Application Extension
.NB Nota Bene Text File
.NCB MS Developer Studio File
.NCD Norton Change Directory
.NCF Netware Command File or Lotus Notes Internal Clipboard
.NDL Lotus Notes
.NDO 3D Low-polygon Modeler
.NDX Index (usually dBase compatible)
.NED MSN Application Extension
.NET Network Configuration
.NEW New Information (e.g., WHATS.NEW)
.NFF Image File or Neutral File Format
.NFO Folio Infobase
.NG Norton Guide Online Documentation
.NIL Norton Icon Library File
.NLB Oracle 7 Data
.NLM Netware Loadable Module
.NLS Code Page National Language Support
.NLU Norton Live Update E-Mail Trigger File
.NOT Notes
.NRG Norton Registration Entries
.NS2 Lotus Notes 2 Database
.NS3 Lotus Notes
.NSF Lotus Notes Database
.NSG Lotus Notes
.NSH Lotus Notes
.NST Audio File or Noise Tracker Music Module
.NTF Lotus Notes Database Template
.NTS Norton Tutorial
.NTX Clipper Index
.NW NoteWorthy 2 File
.NWC Noteworthy Composer Song File
.NWS MS Outlook Express News File
.O Object File
.O$$ Output File (temporary usually)
.O01 Typhoon Voice File
.OAB MS Outlook Address Book
.OAZ OAZ Fax File
.OBD MS Office Binder
.OBJ Relocatable Object Code (various) or Lightwave Object
.OBZ MS Office Binder Wizard
.OCA Control Typelib Cache
.OCX Object Linking and Embedding (OLE) Control Extension
.ODF Open Document Interchange or BattleZone Cartographers Guild File
.ODS MS Outlook Express Mailbox
.OFC Open Financial Connectivity File
.OFF Vector Graphic (Object File Format) or
3D Mesh Object File Format
.OFM Adobe Font
.OFN MS Office FileNew File
.OFT MS Outlook Item Template
.OFX Open Financial Exchange File
.OKT Oktalyzer Tracker Module
.OLB Object Library
.OLD Old Version (sometimes used as a backup indicator)
.OLE Object Linking and Embedding (OLE) Object
.OLI Olivetti Text File
.OMF Image File
.OND Lotus Notes-related File (unverified)
.ONX Onyx Graphics Postershop File
.OPC Beta 44 Job File
.OPL Psion Organiser Programming Language Source File
.OPO OPL Output Executable File
.OPT QEMM Optimize or Options or MS Developer Studio File
.OPX MS Orgchart Organization Diagram or OPL Extension DLL
.OQY MS Excel OLAP Query File
.OR2 Lotus Organiser 2 File
.OR3 Lotus Organiser 97 File
.ORA Oracle 7 Configuration
.ORC MIDI File or Oracle 7 Script
.ORG Lotus Organiser File
.ORI Original
.OSS MS Office Search
.OST MS Exchange/Outlook Offline File
.OTL Super NoteTab Template File
.OUT Outlines or Output File (various)
.OV1 Program File - Overlay
.OV2 Program File - Overlay
.OV3 Program File - Overlay
.OVL Program File - Overlay
.OVR Program File - Overlay
.OZM Sharp Organizer Memo Bank
.OZP Sharp Organizer Telephone Bank
.P PASCAL Program File or Applause Picture
.P10 Tektronix Plot 10 Drawing or Certificate Request
.P65 Pagemaker 6.5 File
.P7C Digital ID File
.P7M PKCS #7 MIME Message
.P7R Certificate Request Response
.P7S PKCS #7 Signature
.PAB MS Personal Address Book
.PAC SB Studio II Package
.PAD Telemate Keypad Definition
.PAG Property Page File
.PAK Compressed Archive File or Quake WAD File
.PAL Color Palette or Compressed File
.PAN Chromeleon Control Panel
.PAR Fractint Parameter File
.PAS Pascal Source Code
.PAT AutoCAD Hatch Pattern or Patch or Corel Vector Pattern or
Advanced Gravis Ultrasound or Forte Tech. Patch
.PBD PowerBuilder Dynamic Library
.PBF Turtle Beach Pinnacle Bank File
.PBK MS Phonebook
.PBL PowerBuilder Library
.PBM UNIX Portable Bitmap
.PBR PowerBuilder Resource
.PBI Profiler Binary Input
.PBM PBM Portable Bit Map Graphic
.PBO Profiler Binary Output
.PBT Profiler Binary Table
.PC PC-specific Text File
.PC3 Harvard Custom Palette
.PC5 Rockwell Software Logix 5 File
.PC8 ASCII Text IBM-8
.PCA PCAnywhere Registry Backup
.PCC Image File
.PCD Photo-CD Image or P-Code Compiled Test Scripts
.PCE Eudora Mailbox Name Map
.PCF Profiler Command File
.PCH Patch File or MS C PreCompiled Header
.PCK Turbo Pascal Pick File
.PCL HP-PCL Graphic Data File (HP Printer Control Language)
.PCM Sound File or OKI MSM6376 Synth Chip PCM Format
.PCP Symantec Live Update Pro
.PCS PICS Animation
.PCT Bitmap Graphic (Apple PICT Format Usually)
.PCW PC Write Text File
.PCX PC Paintbrush Bitmap Graphic
.PDB Palmpilot Database File or Tact File
.PDD Adobe PhotoDeluxe Image
.PDF Printer Description or Adobe Acrobat File or
Netware Printer Definition File or MS Package Definition File
(Inventory-related)
.PDG PrintShop Deluxe File
.PDI MS Powerpoint File
.PDQ Patton & Patton Flowcharting PDQ Lite File
.PDR Port or Printer Driver
.PDS PDS Graphic or Telsis HiCall Program File
.PDT ProCite Primary Database
.PDV Paintbrush Printer Driver
.PDX Paradox Files or ProCite Database Keys or Acrobat Catalog Index
.PEB WP Program Editor Bottom Overflow File
.PED WP Program Editor Delete Save
.PEM WP Program Editor Macro
.PEQ WP Program Editor Print Queue File
.PER WP Program Editor Resident Area
.PES WP Program Editor Work Space File
.PET WP Program Editor Top Overflow File
.PF Monitor or Printer Profile File or
Aladdin Systems Private Files Encrypted File
.PFA Outline Font (ASCII)
.PFB Outline Font (Binary)
.PFC PF Component
.PFE Programmers File Editor
.PFK XTree Programmable Function Keys
.PFM Printer Font Metrics
.PFT Chiwriter Printer Font
.PGL Graphics (Plotter)
.PGM Portable Graymap Graphic or Chromeleon Batch Program
.PGP Program Parameter or Pretty Good Privacy
.PGX Binary Property Page File
.PH PERL Header or MS Help Compiler Phrase Table
.PHD PC Help Desk File
.PHO Phone List
.PHP PHP Script
.PHR NoExcuse Phrase Checker
.PIC PC Paint Bitmap Graphic or Lotus Picture or
Macintosh PICT Drawing
.PIF Windows Program Information File or IBM PIF Drawing
.PIG Lucas Arts Dark Forces WAD File
.PIN Pushpin Set or Epic Pinball Data File
.PIT Macintosh Compressed Archive File
.PIX PrintMaster Graphic File or Inset Systems Bitmap
.PJ MKS Source Integrity File
.PJL ProCite Term Lists and Journal Title Lists
.PJT Foxpro Project Memo
.PJX Foxpro Project
.PKA Compressed Archive File
.PKG MS Developer Studio Application Extension or
AppleLink Package Compression Format File
.PKO PublicKey Security Object
.PKR PGP Public Keyring
.PL Harvard Palette or PERL Program File
.PL3 Harvard Chart Palette
.PLB Foxpro Library
.PLB LogoShow Screensaver
.PLC Lotus Add-in
.PLG REND386/AVRIL File
.PLI Oracle 7 Data Description
.PLL Prelinked Library
.PLM DisorderTracker2 Module
.PLN WP Spreadsheet File
.PLS DisorderTracker2 Sample or WinAmp MPEG PlayList File or
Shoutcast File
.PLT AutoCAD HPGL Vector Graphic Plotter File or
Gerber Sign-making Software File
.PLY Autodesk Polygon
.PM PM Graphic or Perl Module
.PM3 PageMaker 3 Document
.PM4 PageMaker 4 Document
.PM5 PageMaker 5 Document
.PM6 PageMaker 6 Document
.PML NT4 Performance Monitor Log File or PADGen Program Information
.PN3 Harvard Printer Driver
.PNG Public (Portable) Network Graphic (proposed GIF replacement) or
PaintShop Pro Browser
.PNM PBM Portable Any Map Graphic
.PNT MacPaint File
.POG Descent2 File
.POL Music File
.POP dBase Popup Menu
.POS ProCite Output Styles
.POT PowerPoint Template
.POV Persistence of Vision Ray-tracer
.PP Compressed Archive File
.PP4 Picture Publisher
.PP5 Picture Publisher
.PPA PowerPoint Add-in
.PPD PostScript Printer Description
.PPF Turtle Beach Pinnacle Program File
.PPL Harvard Polaroid Palette Plus ColorKey Driver
.PPM PBM Portable Pixelmap Graphic
.PPO Clipper Preprocessor Output
.PPP Serif PagePlus Publication or Parson Power Publisher
.PPS PowerPoint Slideshow
.PPT PowerPoint Presentation
.PPX Serif PagePlus Publication
.PR2 Persuasion Presentation
.PR2 dBase IV Printer Driver
.PR3 dBase IV PostScript Printer Driver
.PRC Palmpilot Resource File
.PRD Printer Driver
.PRE Freelance Presentation
.PRF Preferences File (various) or dBase IV Printer Driver or
Profiler Output
.PRG Program File (various) or OzWin Purged Messages File or
WAVmaker Program
.PRJ Project or 3D Studio File
.PRM Parameter File
.PRN Printer Text File or DataCAD Windows Printer File or
XYWrite Printer Driver or PostScript File
.PRO Profile or PROLOG Program File
.PRS Printer Resource File or dBase Procedure or Harvard File
.PRT Printer Configuration or Printer-formatted File
.PRV PsiMail Internet Provider Template or
Previous Version (used for files that change)
.PRX Foxpro Compiler Program
.PRZ Freelance Graphics 97 File
.PS PostScript
.PSB Pinnacle Sound Bank
.PSD Photoshop Format or Apple Viewer File
.PSF Chiwriter PostScript Printer Font
.PSI PSION A-law Audio
.PSM Turbo Pascal Symbol Table or Protracker Studio Module
Format or Epic Games Sound Data
.PSP PaintShop Pro Image
.PST Outlook Personal Folder File
.PT3 Harvard Device Driver
.PT3 PageMaker Template
.PT4 PageMaker Template
.PT5 PageMaker Template
.PTM PolyTracker Music Module
.PUB PGP Public Key Ring or Ventura Publication or
MS Publisher Document
.PUF Puffer Encrypted File
.PW Professional Write Text File
.PWD Pocket Word Document
.PWF ProCite Workforms
.PWL Password List
.PWP Photoworks Image File
.PWZ PowerPoint Wizard
.PX Primary Index
.PX Paradox Primer Database Index
.PXL Pocket Excel Spreadsheet
.PY PYTHON Script or Yahoo Saved Messages
.PYC Compiler PYTHON Script
.PZD Pizazz Plus File
.PZO Pizazz Plus File
.Q9Q BladePro Graphic Plugin File
.QAD PF QuickArt Document
.QAG Norton Desktop Quick Access Group
.QBD Keyboard Layout
.QBE Example Query (Query By Example)
.QBO dBase IV Ordered Query
.QBW QuickBooks for Windows File
.QCP Qualcomm PureVoice File
.QDI Dictionary
.QDK Quarterdeck QEMM File
.QDT Quicken Data
.QEF Excel Query
.QEP IRMA Wordstation for Windows
.QFL Family Lawyer Document
.QFX Quick Link Fax
.QIC Backup Set
.QIF Quicken Interchange Format or QuickTime Image
.QLB MS C Quick Library
.QLC PostScript Help File
.QM Quality Motion File
.QMT Quicken Memorized List
.QNT Chromeleon Quantification Method
.QNX Quicken Indexes
.QPR OS/2 Printer Queue Driver or Foxpro Relational Query
.QPX Foxpro Ordered Query
.QRP Centura Report Builder File
.QRS WP Equation Editor
.QRT QRT Ray Tracing Graphic
.QRY dBase IV Query or MS Query
.QSC Pxyl Visuals Chart
.QST Quake Spy Tab File
.QT Quicktime Video
.QTI QuickTime Image
.QTM QuickTime Movie
.QTP QuickTime Preferences
.QTS Macintosh PICT Image or QuickTime Image
.QTX QuickTime Image
.QUE Task Scheduler Queue Object
.QW Q&A Write File
.QWB Quotes WriteBack Import File (MS Money)
.QXD QuarkExpress File
.R Pegasus Mail Resource File
.R01 RAR Compressed File (can be 01 to 99)
.R8 RAW Graphic File
.R8L LaserJet Landscape Font
.R8P LaserJet Portrait Font
.RA RealMedia File
.RAM RealMedia Metafile
.RAR RAR Compressed Archive
.RAS Sun Raster Graphic
.RAT Rating System File
.RAW RAW RGB 24-bit Graphic or Raw Signed PCM Data
.RAX Image File
.RBF R:Base Data File
.RBH RoboHelp Configuration
.RC Borland C++ Resource Compiler Script File
.RD3 Ray Dream Designer Graphics or CorelDream 3D
.RD4 Ray Dream Designer Graphics
.RD5 Ray Dream Designer Graphics
.RDB TrueVector Rules Database
.RDF Resource Description Framework File or Chromeleon Report Definition
.RDL Descent Registered Level
.RDX Reflex Data File
.REC Sprint Record File or Windows Recorder Macro or
RapidComm Voice File
.REF Cross Reference
.REG Registration Data
.REM Annotation (remark)
.REP Text Document
.REQ Request
.RES Resource File (various programs)
.REX REXX Program File
.REZ Resources
.RF Sun Raster Graphic or RealFlash Clip
.RFG RFG Research System Database
.RFH RFG Household Database
.RFT Revisable Format Text
.RGB Picture File
.RI Lotus File
.RIA Alpharel Group IV Raster Graphics File
.RIC Ricoh Graphic File
.RIF Fractal Painter Bitmap
.RIP Remote Imaging Protocol
.RIX Colorix File or RIX Virtual Screen
.RL2 Descent2 Registered Level
.RLA Advanced Visualizer File or Wavefront Raster Image
.RLB Harvard Graphic File
.RLC Image Systems CAD Overlay
.RLE Graphic (Run Length Encoded)
.RM RealMedia File
.RMD RegMaid Document
.RMF Rich Map Format (3D Games)
.RMI MIDI File
.RMK RMake Make File
.RMM RealPlayer File
.RND AutoCAD Rendering Slide or AutoShade Format
.RNL GTX Runlength Raster Graphics
.RNX RealPlayer File
.ROL Adlib Music
.ROV Rescue Rover Data
.RP RealPix Clip
.RPD Rapidfile Database
.RPM RedHat Package Manager (Linux) or RealMedia Player File
.RPT Report (various)
.RQY MS Excel OLE DB Query File
.RR Railroad Tycoon
.RRS Road Rash Save File
.RSL PC Tools Resources Library or Borderland's Paradox 7 Report
.RSP Responce Text File or Rockwell Software Logix 5 File
.RT RealText Clip
.RTA RoboHelp Configuration
.RTF Rich Text Format
.RTK RoboHelp Configuration
.RTL Text File
.RTM Real Tracker Music Module
.RTP TurboTax Update File
.RTS RoboHelp Configuration or RealAudio RTSL Document
.RUL InstallShield
.RUN PC Tools Script Tools Program
.RV RealVideo Clip
.RVP Microsoft Scan Configuration File
.RX Reflex Database Driver
.RXD Reflex Database
.RXH Reflex Database Help File
.RXR Reflex Database Report
.RXS Reflex Database Screen Driver
.S Assembler Source Code
.S$$ Temporary Sort File
.S01 WordPerfect Distribution File
.S02 WordPerfect Distribution File
.S03 WordPerfect Distribution File
.S3I ScreamTracker v3 Instrument
.S3M ScreamTracker v3 Module or ScreamTracker v3 Sound File
.SAM AMI Pro Text File or Signed 8-bit Sample Data
.SAN The Curse of Monkey Island Movie File
.SAV Backup or Saved File
.SB Audio File or Raw Signed Byte (8-bit) Data
.SBK Emu SoundFont v1.x Bank Files or Creative Labs SB AWE 32
.SBL Shockwave Flash Object
.SBP Superbase DML Program
.SC Framework Screen Driver or Paradox Source Code
.SC2 Sample Cell or II PC Instrument or Schedule+ File or
SAS Catalog
.SC3 Harvard Screen Driver
.SCC Text File or Stamp Collector's Girl Friday Catalog File or
Source Safe File
.SCD Graphic (SCODL Scan Conversion Object Description Language) or
Schedule+ File or TurboTax Schedule File
.SCE SoftCuisine Data Exchange File
.SCF Windows Explorer Command
.SCH Schedule+ File
.SCI ScanVec Inspire File
.SCM SchematicMaker (Topanga Software) File or ScreenCam Movie
.SCN Compressed Screen format or TrueSpace2 Scene
.SCO High Score (various)
.SCP Script (various)
.SCR Faxview Fax or Screen Saver or Script
.SCT Foxpro Screen or PC Tools Script Tools or
Scitex Continuous Tone Bitmap or SAS Catalog or
Windows Script Component or Lotus Screen Capture Text
.SCV ScanVec CASmate File
.SCX Foxpro Screen or Image File
.SD Sound Designer I Audio
.SD2 Sound Designer II Flattened File or
Sound Designer II Data Fork or SAS Database
.SDA StarOffice Drawing or SoftCuisine Data Archive
.SDC StarOffice Spreadsheet
.SDD StarOffice Presentation
.SDF Standard Data Format or Schedule Data File or
System File Format or Autodesk MapGuide Spatial Data Files
.SDK Roland S-series Floppy Disk Image
.SDL SmartDraw Library
.SDN Shell Archive
.SDR SmartDraw Drawing
.SDS StarOffice Chart or Raw Midi Sample Dump Standard File
.SDT SmartDraw Template
.SDV Semicolon Divided Values File
.SDW StarOffice Text or Raw Signed DWord (32-bit) Data or
Lotus WordPro Graphic
.SDX Midi Sample Dump Standard Files Compacted by SDX
.SEA Macintosh Compressed Archive File
.SEC Compressed Archive File or PGP Secret Key Ring
.SEG Compressed File Segment
.SEL PaintShopPro Selection File
.SEP TIFF Bitmap Separation
.SEQ Animation File or Chromeleon Sequence List
.SES Digital Audio Editor File
.SET Driver Set or Image Settings or Backup File Set or
Configuration (various)
.SF Sound File or OS/2 WPS Attribute Storage or IRCAM SoundFile
.SF2 Emu SoundFont v2.0 File or
Creative Labs Soundfont 2.0 Bank File
.SFD SoundStage Sound File Data
.SFI Ventura Printer Font or SoundStage Sound File Info
.SFL Ventura Printer Font or LaserJet Landscape Font
.SFP Ventura Printer Font or LaserJet Portrait Font
.SFR Sonic Foundry Sample Resource
.SFS StarOffice Frame or PCL 5 Scalable Font
.SFT Chiwriter Screen Font
.SFW Graphic File (Seattle Film Works)
.SFX Self-extracting Archive
.SGI Graphic File
.SGL StarOffice Master Document
.SH Archive File
.SH3 Harvard Presentation
.SHB Corel Background File or Document Shortcut File
.SHG Hotspot Editor Hypergraphic
.SHK Macintosh Compressed Archive File
.SHM WP Shell Macro
.SHP 3D Studio Shapes File or 3D Modeling File (various)
.SHR Archive File
.SHS Scrap Object
.SHW Corel Presentation or Show File
.SI SoftImage Image File
.SIG Signature File
.SIK Backup File
.SIM Simulation
.SIT Macintosh Compressed Archive File
.SIZ Oracle 7 Configuration
.SKA PGP Secret Keyring
.SKL Authorware Resource
.SL S-Lang Program File or PACT's Save Layout
.SLB AutoCAD Slide Library
.SLC Telix Compiler SALT Script
.SLD AutoCAD Slide
.SLG Chromeleon Audit Trail
.SLK Data Exchange File (Symbolic Link)
.SLT Telix SALT Script Application
.SM Smalltalk Program File
.SM Samna Word Text File
.SM3 DataCAD Symbol File
.SMD StarOffice Mail
.SMF StarOffice Formula
.SMI RealPlay SMIL File
.SMM Ami Pro Macro
.SMP Sample or Samplevision Format or Ad Lib Gold Sample
.SND Sound Clip or Raw Unsigned PCM Data or
AKAI MPC-series Sample or NeXT Sound or
Macintosh Sound Resource
.SNG MIDI Song
.SNM Netscape Mail
.SNO SNOBOL Program File
.SNP Shapshot file (Snapview)
.SOU SB Studio II Sound
.SP Compressed Archive File
.SPC Multiplan Program or WP Temp File or SNES Audio file
.SPD Harvard Bitstream Typefaces or PostScript Printer
Mini-driver or Speech Data File or Speedo Scalable Font
.SPG Sprint Glossary
.SPL Compressed Archive File or Printer Spool File or
Sprint Printer Driver or Sample File or Spell Checker or
Digitrakker Sample or Shockwave Flash Object
.SPM WP File
.SPN WordPerfect Distribution File
.SPP Sprint Printer File
.SPR Sprint Document Letter or Foxpro Generated Screen Program
.SPS Sprint Screen Driver
.SPT SPITBOL Program File
.SPX Foxpro Compiler Screen Program or Screen Peace Extension
.SQB SyQuest Backup
.SQC Structured Query Language Common Code File
.SQL Structured Query Language Data
.SQR Structured Query Language Program File
.SQZ Compressed Archive File
.SRC Sourcecode (various)
.SRF Sun Raster Graphic File
.SSD SAS Database
.SSF Enable Spreadsheet File
.SSI Installer/GD Software Setup Information
.SSM RealPlay Standard Streming Metafile
.SST Certificate Store
.ST SMALLTALK Program File or Atari ST Disk Image
.STA Eudora File
.STD State Transition Diagram Graphic or
SureThing CD Labeler Document
.STF Compressed Archive File or Setup Information or
Structured File
.STG PageKeeper Storage File
.STK Personal Stock Monitor File
.STL Certificate Trust List or
CAD Software Solid Modeling/Prototyping File
.STM Sound File or State Transition Diagram Model or
Scream Tracker v2 Module or SHTML File
.STP PageKeeper Packed Storage File
.STR dBase Structure List or DataPerfect Structure File or
Sceensaver or Stream File (Playstation Discs)
.STS MS C Project Status Info
.STY Style Sheet or MS Interactive Music Control or LaTeX2e Style
.SUD Super Project Analyzer Data
.SUN Sun Raster Graphic File
.SUP Supplemental Dictionary or Super Porject Analyzer Project
.SVD Word Backup File
.SVG Word Backup File
.SVS Word Backup File
.SVX Interchange File Format, 8SVX/16SV or Amiga 8SVX Sound
.SW Audio File or Raw Signed Word (16-bit) Data
.SWA Shockwave Audio File
.SWD Storybook File (educational)
.SWF Macromedia Flash Format
.SWP Sprint Backup File or Swap File
.SWT VB Setup Wizard Template File or Space Watch Pro Data File
.SY3 Harvard Symbol File
.SYD Sysedit Backup File
.SYL SYLK Spreadsheet Format
.SYM Symbols or Symbol Table
.SYN Synonym File
.SYS System Configuration or System Device Driver
.SYW Harvard Symbol Graphic or Yamaha SY-series Wave Files
.T2T Sonata CAD Modelling File
.TAB Guitar Tablature File
.TAG Dataflex Query Tag Name
.TAH Turbo Assembler Help File
.TAL Adobe Type Align
.TAR Compressed Archive File
.TAX Turbotax File
.TAZ TAR.Z Compressed File
.TB1 Turbo C Font
.TB2 Turbo C Font
.TBK Memo Backup (database programs) or Asymetrix Toolbook
.TC Borland Configurations File
.TCH Borland Help File
.TCL TCL/TK Language Script
.TD Turbo Debugger Configurations File
.TDB Thumbs Plus Database
.TDF Trace Definition File or Typeface Definition File (for fonts)
.TDH Turbo Debugger Help File
.TDK Turbo Debugger Keyboard Record
.TDO Compressed File
.TDS Turbo Debugger Symbol Table
.TEM Icon Author Template or Turbo Editor Macro Language
.TEX TeX or LaTeX File or Texture File
.TF Turbo Profiler Configuration File
.TFA Turbo Profiler Area File
.TFH Turbo Profiler Help File
.TFM Tagged Font Metric
.TFS Turbo Profiler Statistic
.TG4 CCITT Group 4 Fax
.TGA Truevision Targa Graphic
.TGZ UNIX Tar File Zipped
.THB Bitmap Graphic
.THD Thread
.THM MS Clipart Gallery Database
.THN Graphics Workshop for Windows Thumbnail
.THP TurboTax-related File
.THS Thesaurus
.TIF Tagged Image Format File
.TIG Tiger Government Map File
.TLB Remote Automation Truelib Files or OLE Type Library
.TLD Trellix File
.TLE NASA Two-Line Element Set
.TLT Trellix File
.TLX Telex or Trellix Data File
.TMF WP Tagged Font Metric File
.TMO Zortech C++ Global Optimizer Output File
.TMP Temporary File
.TMS Telemate Script
.TOC Table Of Contents
.TOL Kodak Photoenhancer
.TP Turbo Pascal Configuration File
.TP3 Harvard Template
.TPH Turbo Pascal Help File
.TPL Turbo Pascal Resident Units or Harvard Template or
fKey Template Designer Template File or CakeWalk Audio
Template File or DataCAD Template File
.TPP Turbo Pascal Protected Mode Units or Teleport Pro Project or
TypePlus File
.TPU Turbo Pascal Unit
.TPW Turbo Pascal Unit
.TRE PC Tools Directory Tree
.TRK Kermit Script File
.TRM Terminal Settings
.TRN Quattro Translation or MKS Source Integrity Project Log
.TRP Tripmaker File
.TSP Windows Telephony Service Provider
.TST WP Printer Test File or Test File
.TTC TrueType Compressed Font
.TTF TrueType Font
.TTK Corel Catalyst Translation Tool Kit
.TTL Tera Term Macro File
.TUB PaintShopPro Tube File
.TUT Tutorial
.TWF TabWorks File
.TWW Tagwrite Template
.TX8 DOS Text File
.TXB Descent/D2 Encoded Briefing File
.TXT Text File
.TXW Yamaha TX16W Wave Files
.TXX DataPerfect Text Storage
.TYM PageMaker Time Stamp
.TZ Compressed File
.UB Audio File or Raw Unsigned Byte (8-bit) Data
.UC2 Compressed File
.UDF WindowsNT Uniqueness Database File
.UDL MS Data Link
.UDW Raw Unsigned DoubleWord (32-bit) Data
.UI User Interface
.UL uLAW Audio File
.ULD Procomm Uploaded Files
.ULS Internet Location Service
.ULT UltraTracker Module
.UNI MikMod (UniMod) Format
.UNX Text File (usually UNIX)
.UPD dBase Update File
.UPO dBase Compiled Update File
.URL Internet Location
.USE MKS Source Integrity File
.USL LaserJet Landscape Font
.USP PageMaker Printer Font or LaserJet Portrait Font
.USR User Database (various)
.UTL Sound File
.UTP BinPatch Patch Data File
.UU Compressed Archive File (UUENCODE)
.UUD Uudecoded
.UUE Uuencoded
.UW Audio File or Raw Unsigned Word (16-bit) Data
.UWF UltraTracker Wave File
.V8 Covox 8-bit Audio
.VAL Validity Checks or dBase Values
.VAP Annotated Speech
.VAR Icon Author Variable
.VBA VBase File
.VBG Visual Basic Group Project
.VBL User Control Licensing File
.VBP Visual Basic Project
.VBR Remote Automation Registration Files
.VBS VBScript Script File
.VBW Visual Basic Project Workplace
.VBX Visual Basic Extension
.VBZ Wizard Launch File
.VC Spreadsheet File
.VCE Natural MicroSystems Voice File
.VCF vCard File or Vevi Configuration File
.VCS vCalendar File (Outlook)
.VCT FoxPro Class Library
.VCX FoxPro Class Library or Spreadsheet File
.VDA Targa Bitmap
.VDO VDOScript File
.VEW Clipper Viewfile
.VGA VGA Screen Driver or Targa Bitmap
.VGR Ventura Graphic
.VI Virtual Instrument LabView File
.VIC Picture File
.VID Monitor Control File or Screen Driver
.VIK Picture File
.VIR Virus Infected File (renamed by Symantec Anti-Virus)
.VIS Picture File
.VIV VivoActive Player Video File
.VIZ Division dVS/dVISE File
.VLB Corel Ventura Library
.VMF Ventura Font Characteristics or FaxWorks Audio File
.VOB DVD Video Movie File
.VOC Audio File or Creative Labs Sound
.VOX Vox Audio or Dialogic ADPCM or Talking Technology Inc. File or
Natural MicroSystmes Voice File
.VP Ventura Publisher File
.VQE Yamaha Sound-VQ Locator File
.VQF Yamaha Sound-VQ File
.VQL Yamaha Sound-VQ Locator File
.VRF Oracle 7 Configuration File
.VRS WordPerfect Graphics Driver
.VSD Visio Drawing
.VSL GetRight Download List File
.VSS Visio Stencil
.VST Visio Template or Truevision Vista Graphic or Targa Bitmap
.VSW Visio Workspace File
.VUE dBase or Foxpro View
.VVF ViVerify Fingerprint
.VVR ViVerify Repair
.VW Volkswriter Text File
.VWR PC Tools File Viewer
.VXD Virtual Device Driver
.W Applause Word Chart
.W30 Ventura Printer Font
.W40 Win95 Backup File
.WAB Outlook File
.WAD Doom Game File
.WAL WalMaster Showlist File or Quake 2 Texture File
.WAV Waveform Audio (PCM Wave)
.WB1 QuattroPro for Windows
.WB2 QuattroPro for Windows
.WBF Windows Batch File
.WBK Word Backup or WP Workbook
.WBL Argo WebLoad II Upload File
.WBR Crick WordBar File
.WBS WebExpress Website File
.WBT WinBatch Script or Crick Wordbar Template
.WCD WP Macro Token List
.WCM Works File Transmission or WordPerfect Macro
.WD2 WordExpress Document
.WDB Works Database
.WDK WhizFolder Desktop File
.WEB Web Vector Graphic File or Corel Xara Web Document
.WFB Turtle Beach WaveFront Bank
.WFD Turtle Beach WaveFront Drum Set
.WFN Corel Symbols and Fonts
.WFP Turtle Beach WaveFront Program
.WFX Winfax Data File
.WGP Wild Board Games File
.WHT MS NetMeeting Old Whiteboard Document
.WID Ventura Width Table
.WIF Weaving Information Format or Image File
.WIL Windows Interface Language Script or WinImage File
.WIN dBase or Foxpro Window or Windows Backup File
.WIZ Wizard File
.WK1 Lotus Spreadsheet File
.WK3 Lotus Spreadsheet File
.WK4 Lotus Spreadsheet File
.WKB WP Document
.WKB Workbook
.WKE Spreadsheet File
.WKQ Quattro Spreadsheet
.WKS Lotus Spreadsheet File or XLISP Workspace or Works Document
.WKZ Compressed Spreadsheet
.WLD REND386/AVRIL File
.WLF Argo WebLoad I Upload File
.WLG Dr. Watson Log
.WLL Word Add-in
.WLR VRML Page
.WMA Windows Media File
.WMC WP Macro or Wordmarc Text File
.WMF Windows Metafile
.WN Write Now Text File
.WNF Corel Outline Font
.WOA Windows Swap File
.WOW Grave Composer Music Module
.WP WordPerfect Document File
.WP4 WordPerfect Document File
.WP5 WordPerfect Document File
.WP6 WordPerfect Document File
.WPD WordPerfect Screen Driver or Document
.WPF WordPerfect Text File or Enable Document
.WPG WordPerfect Graphics
.WPK Keyboard or WP Macros
.WPM WordPerfect Macro
.WPS Works Text Document
.WPT WordPerfect Template
.WPW PerfectWorks Document
.WQ! Compressed Spreadsheet
.WQ1 Quattro Pro Spreadsheet
.WQ2 Quattro Pro Spreadsheet
.WR1 Symphony Spreadsheet File
.WRD Charisma Template
.WR1 Symphony Document
.WRI Write Document
.WRK Spreadsheet File or Cakewalk Music Project File
.WRL Virtual Reality Model
.WRP Compressed Archive File
.WRS WP Windows Printer Driver
.WRZ VRML File
.WS WordStar Document
.WS1 WordStar for Windows 1 Document
.WS2 WordStar for Windows 2 Document
.WS3 WordStar for Windows 3 Document
.WS4 WordStar for Windows 4 Document
.WS5 WordStar for Windows 5 Document
.WS6 WordStar for Windows 6 Document
.WS7 WordStar for Windows 7 Document
.WSC Windows Script Component
.WSD WordStar Data File
.WSE Wise File
.WSH Windows Script Host Settings File
.WSP Chromeleon Wordspace
.WSQ Wavelet-packet Scalar Quantization
.WST WordStar Text File
.WT2 WordExpress Document Template
.WVL Wavelet Compressed Bitmap
.WWL Word Add-in File
.WZN WhizFolder Document
.X LEX Program File or AVS Image
.X01 Paradox Secondary Index (can be 01 to 09)
.X16 Macromedia Program Extension (16-bit)
.X32 Macromedia Program Extension (32-bit)
.X5 Rockwell Software Logix 5 File
.XA Extended Architecture File or File on PSX Disc
.XAB Xenis Mail Address Book
.XAR Corel Xara Drawing
.XBM X Bitmap Graphic
.XFN Ventura Printer Font
.XFT Chiwriter 24 Pin Printer Font
.XFX Fax File (various)
.XI Fast Tracker 2 Instrument or ScreamTracker Instrument File
.XIF Wang Image File or Xerox Image File
.XLA Excel Add-in
.XLB Excel File
.XLC Excel Chart
.XLD Excel Dialog
.XLG Xnetech Engraving Logo File
.XLK Excel Backup
.XLL Excel Add-in (Dynamic Link Library)
.XLM Excel Macro
.XLS Excel Worksheet
.XLT Excel Template or Lotus Translation Table
.XLV Excel VBA
.XLW Excel Workspace
.XM Sound File or Fast Tracker 2 Extended Module
.XML Extensible Markup Language File
.XNK Exchange Shortcut
.XOT Xnetech Job Output File
.XPM X Picsmap Graphic
.XQT SuperCalc Macro Sheet
.XRF Cross Reference
.XR1 Epic MegaGames Xargon File
.XSL XML Stylesheet
.XT* Crosstalk Related File
.XWD X Windows Dump or Crossdown Puzzle File
.XWF Yamaha XG Works File
.XXE Xxencoded File
.XY XYWrite Text File
.XY3 XYWrite Text File
.XY4 XYWrite IV Document
.XYP XYWrite III Plus Document
.XYW XYWrite Windows 4.0 Document
.Y Compressed Archive File
.Y01 Paradox Secondary Index (can be 01 to 09)
.YAL Arts & Letters Clipart
.YBK Encarta Yearbook
.YUV Color Space Pixel Format
.Z Compressed Archive File
.ZC Zipkey Configuration File
.ZIP Compressed Archive File
.ZOM Compressed Archive File
.ZOO Compressed Archive File
.ZVD ZyXEL Voice File
.ZW Chinese
.~ Temporary File
.~MN Norton Menu Backup
.~SG TapCIS Message Index File