File Extensions List
| A | Object code library |
| AAM | Authorware shocked file |
| AAS | Authorware shocked packet |
| ABF | Adobe Binary Screen Font |
| ABK | Corel Draw AutoBackup |
| ACE | Compression file format associated with a program called The Ace Archiver |
| ACL | Corel Draw 6 keyboard accelerator |
| ACM | Used by Windows in the system directory |
| ACP | Microsoft Office Assistant Preview file |
| ACR | American College of Radiology file format |
| ACT | Microsoft Office Assistant Actor file |
| ACV | OS/2 drivers that compress and decompress audio data |
| AD | After Dark screensaver |
| ADA | Ada source text (non-GNAT) |
| ADB | Ada source text body (GNAT) |
| ADB | Appointment database used by HP 100LX organizer |
| ADD | OS/2 adapter drivers used in the boot process |
| ADF | Amiga Disk File |
| ADI | AutoCAD Device-Independent binary plotter format |
| ADM | After Dark MultiModule screensaver |
| ADP | Used by FaxWorks to do setup for fax modem interaction |
| ADP | Astound Dynamite file |
| ADR | After Dark Randomizer screensaver |
| ADS | Ada source text specification (GNAT) |
| AFM | Adobe font metrics |
| AF2 | ABC Flowchart file |
| AF3 | ABC Flowchart file |
| AI | Adobe Illustrator drawing |
| AIF, AIFF | Audio Interchange File, a sound format used by Silicon Graphics and Macintosh applications |
| AIFC | Similar to AIF (compressed) |
| AIFF | Similar to AIF |
| AIM | AOL Instant Messenger Launch |
| AIS | ACDSee Image Sequence file |
| AIS | Velvet Studio Instruments |
| AKW | Contains all A-keywords in the RoboHELP Help project Index Designer not associated with topics |
| ALAW | European telephony format audio |
| ALB | JASC Image Commander album |
| ALL | Arts & Letters Library |
| AMS | Velvert Studio music module (MOD) file |
| AMS | Extreme's Tracker module format |
| ANC | Canon Computer Pattern Maker file that is a selectable list of pattern colors |
| ANI | Animated cursor in a Microsoft Windows system |
| ANS | ANSI text |
| ANT | saved game file in the original SimAnt for Windows |
| API | Application Program Interface file; used by Adobe Acrobat |
| APR | Lotus Approach 97 file |
| APS | Microsoft Visual C++ file |
| ARC | LH ARC (old version) compressed archive |
| ARI | Aristotle audio file |
| ARJ | Robert Jung ARJ compressed archive |
| ART | Xara Studio drawing |
| ART | Canon Crayola art file |
| ART | Clip Art file format |
| ART | Another Ray Tracer format |
| ART | Used by AOL to designate files compressed using the Johson-Grace compreession algorithm |
| ASA | Microsoft Visual InterDev file |
| ASC | ASCII text |
| ASC | PGP armored encrypted file |
| ASD | WinWord AutoSave |
| ASD | Microsoft Advanced Streaming Format (ASF) description file; opens with NSREX |
| ASE | Velvet Studio sample |
| ASF | Microsoft Advanced Streaming Format file |
| ASM | Assembler language source file |
| ASO | Astound Dynamite Objects |
| ASP | Active Server Page (an HTML file containing a Microsoft server-processed script) |
| ASP | Procomm Plus setup and connection script |
| ASP | Astound Presentation file |
| AST | Astound multimedia file |
| AST | Claris Works "assistant" file |
| ASV | DataCAD Autosave file |
| ASX | Cheyenne Backup script |
| ASX | Microsoft Advanced Streaming Redirector file |
| ASX | Video file |
| ATT | AT&T Group 4 bitmap |
| AU | Sun/NeXT/DEC/UNIX sound file |
| AU | Audio U-law (pronounced mu-law) file format |
| AVB | Inculan Anti-Virus virus infected file |
| AVI | Microsoft Audio Video Interleaved file format for Windows movie |
| AVR | Audio Visual Research file format |
| AVS | Application Visualization System format |
| AWD | FaxView document |
| AWR | Telsis file extension format for digitally stored audio. |
| AXX | ARJ compressed files from a multi-volume archive (xx = a number from 01 to 99) |
| A3M | unpackaged Authorware MacIntosh file |
| A4M | unpackaged Authorware MacIntosh file |
| A4P | Authorware file packaged without runtime |
| A3W | unpackaged Authorware windows file |
| A4W | unpackaged Authorware windows file |
| A5W | unpackaged Authorware windows file |
| BAK | Backup file |
| BAS | BASIC code |
| BAT | Batch file |
| BDF | extention for a program called West Point Bridge Designer |
| BFC | Windows 95 Briefcase document |
| BG | Backgammon for Windows game |
| BGL | from Microsoft concerning scenery files from the well known Flight Simulator |
| BI | Binary file |
| BIF | GroupWise initialization file |
| BIFF | XLITE 3D file format |
| BIN | Binary file |
| BK and BK$ | Sometimes used to denote backup versions |
| BKS | An IBM BookManager Read bookshelf |
| BMK | A bookmark file |
| BMP | Windows or OS/2 bitmap |
| BM1 | Apogee BioMenace data file |
| BOOK | Adobe FrameMaker Book |
| BOX | A mailbox in Notes |
| BPL | Borland Delphi 4 packed library |
| BQY | BrioQuery file |
| BRX | A file for
browsing an index of multimedia options |
| BSC | MS Developer Studio (MSDev) browser informatio file |
| BSP | Quake map |
| BS1 | Apogee Blake Stone data file |
| BS_ | Microsoft Bookshelf Find Menu shell extension |
| BTM | Batch file used by Norton Utilities |
| BUD | Backup disk for Quicken |
| BUN | CakeWalk Audio Bundle file (a MIDI program) |
| BW | SGI Black and White image file |
| BYU | A file in a Movie BYU format |
| B4 | Helix Nuts and Bolts file |
| C | C code |
| C01 | Typhoon wave files |
| CAB | Microsoft cabinet file (program files compressed for software distribution) |
| CAD | used by the drafting program "Drafix Cad">by Softdesk |
| CAL | CALS Compressed Bitmap |
| CAL | Calendar schedule data |
| CAM | Casio camera format |
| CAP | Compressed music file format |
| CAS | Comma-delimited ASCII file |
| CAT | IntelliCharge categorization file used by Quicken |
| CB | Microsoft clean boot file |
| CBI | Column binary formatted file (used in IBM mainframe systems) |
| CCA | cc:mail |
| CCB | Visual Basic Animated Button configuration |
| CCF | Multimedia Viewer configuration file used in OS/2 |
| CCH | Corel Chart |
| CCM | Lotus CC:Mail "box" (for example, INBOX.CCM) |
| CCO | CyberChat data file |
| CCT | Macromedia Director Shockwave cast |
| CDA | CD Audio Track |
| CDF | Microsoft Channel Definition Format file |
| CDI | Phillips Compact Disk Interactive format |
| CDR | Core Draw drawing |
| CDR | Raw Audio-CD data |
| CDT | Corel Draw template |
| CDX | Corel Draw compressed drawing |
| CDX | Microsoft's Visual Foxpro Index |
| CEL | CIMFast Event Language file |
| CER | Certificate file (MIME x-x509-ca-cert) |
| CFB | Comptons Multimedia file |
| CFG | Configuration file |
| CFM | Cold Fusion template files |
| CGI | Common Gateway Interface script file |
| CGM | Computer Graphics Metafile |
| CH | OS/2 configuration file |
| CHK | File fragments saved by Windows Disk Defragmenter or ScanDisk |
| CHM | Compiled HTML file |
| CHR | Character Sets (Font files) |
| CHP | Ventura Publisher chapter |
| CHT | ChartViewer file |
| CHT | Harvard Graphics vector file |
| CIL | Clip Gallery download package |
| CIM | Sim City 200 file |
| CIN | OS/2 change control file that tracks changes to an INI file |
| 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 |
| CLASS | Java class |
| CLL | Crick Software Clicker File |
| CLP | Windows Clipboard file |
| CLS | Visual Basic Class Module |
| CMD | Command file for Windows NT (similar to a DOS .BAT file), OS/2 |
| CMD | DOS CP/M command file |
| CMD | dBase-II program file |
| CMF | Corel Metafile |
| CMP | JPEG Bitmap |
| CMP | Address document |
| CMV | Corel Move animation |
| CMX | Corel Presentation Exchange image |
| CNF | Configuration file used by Telnet, Windows, and other applications with varying internal formats |
| CNM | Windows application menu options and setup file |
| CNQ | Compuworks Design Shop file |
| CNT | Windows (or other) system content files for the help index and other purposes |
| COB | trueSpace2 object |
| COD | Microsoft C compiler output as displayable machine language/assembler with original C as comments |
| COM | Command file (program) |
| CPD | Corel PrintOffice file (drawing) |
| CPD | Fax Cover document |
| CPE | Fax Cover document |
| CPI | Microsoft MS-DOS code page information file |
| CPL | Control Panel extension |
| CPL | Corel colour palette |
| CPO | Corel Print House file |
| CPP | C++ code |
| CPR | Corel Presents Presentation |
| CPT | Corel Photo-Paint image |
| CPX | Corel Presentation Exchange Compressed drawing |
| CRD | Cardfile file |
| CRP | Corel Presents Run-Time Presentation |
| CRT | Certificate file |
| CSC | Corel Script |
| CSP | PC Emcee On-Screen image |
| CSS | Cascading Style Sheet file (MIME) |
| CST | Macromedia Director "Cast" (resource) file |
| CSV | Comma-separated values file |
| CT | Scitex CT Bitmap |
| CT | A graphic file associated with the Paint Shop Pro Graphic Editor |
| CTL | Used in general to mean a file containing control information. FAXWorks uses it to keep information about each fax sent and received. |
| CUE | Microsoft Cue Cards data |
| CUR | Windows Cursor |
| CUT | Dr Halo bitmap |
| CV | Corel Versions archive |
| CV | Microsoft CodeView information screen |
| CWK | Claris Works data file |
| CWS | Claris Works template |
| CXT | Macromedia Director protected (not editable) "Cast" (resource) file |
| CXX | C++ source code file |
| DAT | Data file |
| DAT | WordPerfect Merge Data |
| DAT | Extension used for some MPEG formats |
| DB | Borderland's Paradox 7 tables |
| DBC | Microsoft's Visual Foxpro Database container |
| DBF | Aston-Tate dBASE database |
| DBX | DataBeam image |
| DBX | Microsoft's Visual Foxpro Table |
| DCM | DCM modle format |
| DCR | Shockwave file |
| DCS | Desktop Color Separation file |
| DCT | Microsoft's Visual Foxpro Database container |
| DCU | Delphi compiled unit file |
| DCX | Microsoft's Visual Foxpro Database container |
| DCX | Fax image (based on PCX) |
| DCX | Macros |
| DC5 | DataCAD Drawing files |
| DDF | BTRIEVE database |
| DDIF | Digital Equipment or Compaq format. Used for storing images and their word processing documents |
| DEF | SmartWare II data file |
| DEF | C++ Definition |
| DEFI | Oracle 7 de-install script |
| DEM | A file with USGS standards for Digital Elevation Models |
| DER | Certificate file |
| DEWF | Macintosh SoundCap/SoundEdit recorded instrument format |
| DGN | Microstation95 CAD drawing file |
| DIB | Device-Independent Bitmap |
| DIC | Dictionary |
| DIF | Data Interchange Format spreadsheet |
| DIG | Digilink format |
| DIG | Sound Designer I audio file |
| DIR | Macromedia Director file |
| DIZ | Description file |
| DLG | C++ Dialogue Script |
| DLS | DownLoadable Sound |
| DLL | Dynamic-Link Library |
| DMF | X-Trakker music module (MOD) file |
| DOC | FrameMaker or FrameBuilder document |
| DOC | WordStar document |
| DOC | WordPerfect document |
| DOC | Microsoft Word document |
| DOC | A DisplayWrite document |
| DOT | Microsoft Word document Template |
| DPL | Borland Delphi 3 packed library |
| DPR | Borland Delphi project header file |
| DRAW | Acorn's object-based vector image file |
| DRV | Driver |
| DRW | Micrografx Designer/Draw |
| DSF | Micrografx Designer v7.x |
| DSG | DooM saved game |
| DSM | Dynamic Studio music module (MOD) file |
| DSP | Microsoft Developer Studio project |
| DSQ | Corel QUERY file |
| DST | Embroidery machines graphics file |
| DSW | Microsoft Developer Studio workspace |
| DTD | SGML Document Type Definition (DTD) file |
| DTED | Digital terrain elevation data (geographic data format) |
| DTM | DigiTrakker module |
| DTF | Symantec Q&A relational database data file |
| DUN | Microsoft Dial-up Networking Export file |
| DV | Digital video file (MIME) |
| DWD | DiamondWare digitized file |
| DWG | Autocad Drawing files |
| DWG | AutoCAD drawing, or older Generic CADD drawing format |
| DXF | Drawing Interchange (eXchange) format,a text representation of the binary DWG format |
| DXF | Data Exchange File |
| DXR | Macromedia Director protected (not editable) movie file |
| EDA | Ensoniq ASR disk image |
| EDE | Ensoniq EPS disk image |
| EDD | Element Definition Document (FrameMaker+SGML documents) |
| EDK | Ensoniq KT disk image |
| EDQ | Ensoniq SQ1/SQ2/KS32 disk image |
| EDS | Ensoniq SQ80 disk image |
| EDV | Ensoniq VFX-SD disk image |
| EFA | Ensoniq ASR file |
| EFE | Ensoniq EPS file |
| EFK | Ensoniq KT file |
| EFQ | Ensoniq SQ1/SQ2/KS32 file |
| EFS | Ensoniq SQ80 file |
| EFV | Ensoniq VFX-SD file |
| EMD | ABT Extended MoDule |
| EMF | Enhanced Windows Metafile |
| EML | Microsoft Outlook Express mail message (MIME RFC 822) |
| ENC | Encore file |
| ENFF | Neutral File Format extension |
| EPHTML | Enhanced Perl-parsed HTML |
| EPS | Encapsulated PostScript image |
| EPSF | Encapsulated PostScript Files |
| ER1 | ERWin file |
| ERR | Stores the error messages that result when the RoboHELP Help Compiler attempts to compile the source files of a Help system |
| ERX | ERWin file |
| ESPS | ESPS audio files |
| EUI | Ensoniq ESP family compacted disk image |
| EVY | Envoy document |
| EWL | Microsoft Encarta document |
| EXC | Microsoft Word Exclusion Dictionary |
| EXE | Executable file (program) |
| F | FORTRAN file |
| F2R | Farandoyle linear module format |
| F3R | Farandoyle blocked linear module format |
| F77 | FORTRAN file |
| F90 | FORTRAN file |
| FAR | Farandole Composer music module (MOD) file |
| FAV | Microsoft Outlook navigation bar |
| FAX | FAX Type image |
| FBK | Navison Financials Backup |
| FCD | Virtual CDROM |
| FDB | Navison Financials Database |
| FDF | Adobe Acrobat Forms Document file |
| FEM | CADRE Finite Element Mesh file |
| FFA | MS fast find file |
| FFF | GUS PnP bank file format |
| FFL | MS fast find file |
| FFO | MS fast find file |
| FFT | Final Form Text (part of IBM's DCA) |
| FFX | MS fast find file |
| FH3 | Aldus Freehand 3 drawing |
| FIF | Fractal image file |
| FIG | A file format used by REND386/AVRIL |
| FITS | CCD camera image |
| FITS | Flexible Image Transport System |
| FLA | Macromidia Flash movie |
| FLC | AutoDesk FLIC animation |
| FLF | Corel Paradox Delived form |
| FLF | Navison Financials License file |
| FLI | AutoDesk FLIC animation |
| FLT | Corel filter |
| FLF | An OS/2 driver file |
| FLT | StarTrekker music module (MOD) file |
| FLT | A file format use in MulitGen Inc.'s Open Flight |
| FM | Adobe FrameMaker Document |
| FMB | Oracle binary source code for form, version 4.0 and later |
| FML | File Mirror List (GetRight) |
| FMT | Oracle text format of form, version 4.0 and later |
| FMT | Microsoft Schedule+ print file |
| FMX | Oracle executable form, version 4.0 and later |
| FND | Microsoft Explorer Saved Search file (Find applet) |
| FNG | Font group file (Font Navigator) |
| FNK | FunkTracker module format |
| FOG | Fontographer font |
| FON | System font |
| FOR | FORTRAN file |
| FOT | Font-related file |
| FP | FileMaker Pro file |
| FP1 | Flying Pigs for Windows data file |
| FP3 | FileMaker Pro file |
| FPT | FileMaker Pro file |
| FPT | Microsoft FoxPro memo fields |
| FPX | FlashPix bitmap |
| FRM | Form |
| FRM | FrameMaker or FrameBuilder document |
| FRM | Oracle executable form version 3.0 and earlier |
| FRM | Visual Basic form |
| FRM | WordPerfect Merge form |
| FRM | Datacad Symbol Report file |
| FRX | Visual Basic form stash file |
| FRX | Microsoft FoxPro report file |
| FRT | Mirosoft FoxPro report file |
| FSF | fPrint Audit Tool file format |
| FSL | Borderland's Paradox 7 forms |
| FSL | Corel Paradox Saved form |
| FSM | Farandoyle Sample format |
| FT | Lotus Notes Full Text index |
| FTG | Full-text Search Group file resulting from using Find in the Windows Help system. Can be erased; will be rebuilt when needed. |
| FTS | Full-Text Search index file resulting from using Find in the Windows help system |
| FW2 | Framework II |
| FW3 | Framework III file |
| FW4 | Framework IV file |
| FXP | Microsoft FoxPro compiled source file |
| FZB | Casio FZ-1 Bank dump |
| FZF | Casio FZ-1 Full dump |
| FZV | Casio FZ-1 Voice dump |
| G721 | Raw CCITT G.721 $bit ADPCM format data |
| G723 | Raw CCITT G.723 3 or 5bit ADPCM format data |
| GAL | Corel Multimedia Manager album |
| GCD | Generic (TM) CADD drawing (later versions) |
| GCP | Ground Control Point file used in image processing of remote sensing data often to form map projections. CHIPS (CopenHagen Image Processing System) uses these files. |
| GDB | InterBase database file |
| GDM | Bells, whistles, and sound boards module format |
| GED | GEDCOM genealogical data file, a popular format for recording and exchanging genealogical data |
| GED | Graphic Environment Document (drawing) |
| GEM | GEM metafile |
| GEN | Ventura-Generated text file |
| GetRight | GetRight Unfinished-Download file |
| GFC | Patton&Patton Flowcharting 4 flowchart file |
| GFI | Genigraphics Graphics Link presentation |
| GFX | Genigraphics Graphics Link presentation |
| GHO | Symantic Ghost Image File |
| GID | Windows 95 global index file (containing help status) |
| GIF | CompuServe bitmap |
| GIM | Genigraphics Graphics Link presentation |
| GIX | Genigraphics Graphics Link presentation |
| GKH | Ensoniq EPS family disk image file |
| GKS | Gravis GripKey document |
| GL | An animation format |
| GNA | Genigraphics Graphics Link presentation |
| GNT | Generated Code, an executable code in a Micro Focus proprietary format |
| GNX | Genigraphics Graphics Link presentation |
| GRA | Microsoft Graph |
| GRD | Grid file, used in image processing of remote sensing data often to form map projections. CHIPS (CopenHagen Image Processing System) uses these files |
| GRF | Grapher (Golden Software) graph file |
| GRP | Program Manager Group |
| GSM | Raw GSM 6.10 audio stream |
| GSM | Raw 'byte aligned' GSM 6.10 audio stream |
| GSM | US Robotics voice modums GSM w.o. header/VoiceGuide/RapidComm |
| GSM | US Robotics voice modums GSM w. header/QuickLink |
| GTK | Graoumftracker (old) music module (MOD) file |
| GT2 | Graoumftracker (new) music module (MOD) file |
| GWX | Genigraphics Graphics Link presentation |
| GWZ | Genigraphics Graphics Link presentation |
| GZ | Unix Gzip compressed file |
| H | C program header |
| HCOM | Sound Tools HCOM format |
| HDF | A file in Hierarchical Data Format |
| HED | HighEdit document |
| HEL | Microsoft Hellbender saved game |
| HEX | Macintosh BinHex 2.0 file |
| HGL | HP Graphics Language drawing |
| HH | Map file. Contains topic IDs and map numbers for each of the topics in a Help system. Allows the running application to send the user the appropriate context-sensitive help topic |
| HLP | Help file |
| HLP | DataCAD Windows Help file |
| HOG | Lucas Arts Dark Forces WAD file |
| HPJ | Visual Basic Help Project |
| HPP | C++ program header |
| HQX | Macintosh BinHex 4.0 file |
| HST | History file |
| HT | HyperTerminal |
| HTM | Hypertext document |
| HTML | Hypertext document |
| HTT | Microsoft Hypertext Template |
| HTX | Extended HTML template |
| HXM | Descent2 HAM file extension |
| ICA | Citrix file |
| ICB | Targa bitmap |
| ICC | Kodak printer format |
| ICL | Icon Library file (an industry standard) |
| ICM | Image Color Matching profile file |
| ICO | Windows Icon |
| IDB | MSDev 'intermediate' file |
| IDD | MIDI Instrument Definition |
| IDF | MIDI Instrument Definition (Windows 95 required file) |
| IDQ | Internet Data Query file |
| IDX | Microsoft FoxPro relational database index file |
| IDX | Symantec Q&A relational database index file |
| IDX | Microsoft Outlook Express file |
| IFF | Interchange Format Files, Amiga ILBM |
| IGES | Initial Graphics Exchange Specification file |
| IGF | Inset Systems metafile |
| IIF | QuickBooks for Windows interchange file |
| ILBM | A bitmap (graphic image) file |
| IMA | WinImage file |
| IMG | GEM image |
| INC | Assembler language or Active Server include file |
| INF | Information file |
| INI | Initialization file |
| INI | MWave DSP synth's mwsynth.ini GM-setup |
| INI | Gravis UltraSound bank setup |
| INP | Oracle source code for form, version 3.0 and earlier |
| INRS | INRS-Telecommunications audio |
| INS | InstallShield install script |
| INS | X-Internet sign-up file |
| INS | Ensoniq EPS family instrument |
| INS | Sample Cell/II MAC/PC instruments |
| INT | Intermediate Code, an executable code produced when a source program is syntax-checked |
| IOF | Findit document |
| IQY | Microsoft Internet Inquiry file |
| ISO | Lists the files on a CD-ROM; based on the ISO 9660 CD-ROM file system standard |
| ISP | X-Internet sign-up file |
| IST | Digitaltracker instrument file |
| ISU | InstallShield uninstall script |
| IT | Impulse Tracker music module (MOD) file |
| ITI | Impulse Tracker instrument |
| ITS | Impulse Tracker sample |
| ITS | Internet document set (possibly a Microsoft file) |
| IV | A file format use in Open Inventor |
| IW | Idlewild screensaver |
| J62 | Ricoh camera format |
| JAR | Java ARchive file (a compressed file for applets and related files) |
| JAVA | Java source code |
| JBF | Paint Shop Pro image browser file |
| JFF | JPEG file |
| JIF | JPEG file |
| JFIF | JPEG file |
| JMP | SAS JMPDiscovery chart-to-statistics file |
| JN1 | Epic MegaGames Jill of the Jungle data file |
| JPE | JPEG file |
| JPEG | JPEG compressed bitmap |
| JPG | JPEG bitmap |
| JS | JavaScript source code |
| JSP | A HTML page containing a reference to a Java servlet |
| JTF | JPEG bitmap |
| K25 | Kurzweil 2500 sample |
| KAR | Karaoke MIDI file (text+MIDI) |
| KDC | Kodak Photo-Enhancer |
| KEY | DataCAD Icon toolbar file |
| KFX | KoFax Group 4 image |
| KIZ | Kodak digital postcard files |
| KKW | Contains all K-keywords in the RoboHELP Help project Index Designer not associated with topics |
| KMP | Korg Trinity KeyMaP file |
| KQP | Konica camera native files |
| KR1 | Kurzweil 2000 sample (multi-floppy) |
| KRZ | Kurzweil 2000 sample |
| KSF | Korg Trinity Sample File |
| KYE | Kye game data |
| LBM | Deluxe Paint bitmap |
| LBT | Microsoft FoxPro labels |
| LBX | Microsoft FoxPro labels |
| LDB | Microsoft Access lock file |
| LDL | Corel Paradox Delivered library |
| LEG | Legacy document |
| LES | Logitech Entertainment system game profiles (same as REG file) |
| LFT | 3D Studio (DOS) loft file |
| LHA | Alternate file suffix for LZH |
| LIB | Library |
| LIN | DataCAD Line type file |
| LIS | Output file produced by a Structured Query Reporting (SQR) program |
| LLX | Laplink Exchange Agent |
| LNK | Windows shortcut file |
| LOG | Log file |
| LPD | Helix Nuts and Bolts file |
| LRC | Intel Video Phone file |
| LSL | Corel Paradox Saved library |
| LSP | AutoLISP, CommonLISP, and othe LISP language files |
| LST | List file |
| LU | ThoughtWing Library Unit file |
| LVL | Parallax Software's Miner Descent/D2 Level Extension |
| LWLO | Lightwave Layered Object file |
| LWOB | Lightwave Object file |
| LWP | Lotus Wordpro 96/97 file |
| LWSC | Lightwave Scene file |
| LYR | DataCAD Layer file |
| LZH | LH ARC compressed archive |
| LZS | Skyroads data file |
| M1V | MPEG-related file (MIME type 'mpeg') |
| M3D | Corel Motion 3D animation |
| M3U | MPEG URL (MIME audio file) |
| MAT | Matlab variables binary file |
| MAC | MacPaint image |
| MAD | Microsoft Access module |
| MAF | Microsoft Access Form |
| MAG | A graphics file format found in some Japanese files |
| MAGIC | Magic Mail Monitor configuration file |
| MAK | Visual Basic or MS Visual C++ Project |
| MAM | Microsoft Access Macro |
| MAN | Unix Manual page output |
| MAP | Map file |
| MAP | Duke Nukem 3D WAD game file |
| MAQ | Microsoft Access Query |
| MAR | Microsoft Access Report |
| MAS | Lotus Freelance Graphics Smartmaster file |
| MAT | Microsoft Access Table |
| MAUD | MAUD sample format |
| MAX | A file format which repesents a scene in KINETIX's 3D Studio MAX |
| MAX | Paperport file |
| MAX | OrCAD layout file |
| MAZ | Hover maze data |
| MAZ | A file format use by Division's dVS/dVISE |
| MB1 | Apogee Monster Bash data file |
| MBOX | Berkeley Unix mailbox format |
| MBX | Extension Microsoft Outlook adds to saved email, Eudora mailboxes |
| MCC | Dialer10 calling card |
| MCC | Dialer10 calling card |
| MCR | DataCAD Keyboard macro file |
| MCW | Microsoft Word for Macintosh document |
| MDA | Microsoft Access add-in |
| MDA | Microsoft Access workgroup for version 2 |
| MDB | Microsoft Access database |
| MDE | Microsoft Access MDE file |
| MDL | Digital Tracker music module (MOD) file |
| MDL | Quake model file |
| MDN | Microsoft Access blank database template |
| MDW | Microsoft Access Workgroup |
| MDZ | Microsoft Access wizard template |
| MED | Music Editor, OctaMED music module (MOD) file |
| MER | Format for interchanging spreadsheet/database data; recognized by Filemaker, Excel, and others |
| MET | Presentation Manager metafile |
| MGF | A file in a Materials and Geometry Format |
| MHTM | MHTML document (MIME) |
| MHTML | MHTML document (MIME) |
| MI | Miscellaneous |
| MIC | Microsoft Image Composer file |
| MID | MIDI music |
| MIF | Adobe FrameMaker Interchange Format |
| MIFF | Machine Independent Format File |
| MIM | A multipart file in the Multi-Purpose Internet Mail Extensions (MIME) format; often created as the result of sending e-mail with attachments in AOL. The files in a multipart MIM file can be "opened" (unarchived and separated into individual files) using Winzip or a similar program. |
| MIME | See MIM. |
| MLI | A file in 3D Studio's Material-Library format |
| MME | A multipart file in the Multi-Purpose Internet Mail Extensions (MIME) format; often created as the result of sending e-mail with attachments in AOL. The files in a multipart MME file can be "opened" (unarchived and separated into individual files) using Winzip or a similar program. |
| MMF | Meal Master Format, a recipe catologing format |
| MMF | Microsoft Mail File |
| MMM | Microsoft Multimedia Movie |
| MMP | Mindmapor MindManager file |
| MN2 | Descent2 Mission File |
| MND, MNI | Mandelbrot for Windows |
| MNG | Multi-image Network Graphics |
| MNT | Microsoft FoxPro menus |
| MNX | Microsoft FoxPro menus |
| MOD | FastTracker, StarTrekker, Noise Tracker (etc.) music module file |
| MOD | Microsoft Multiplan spreadsheet |
| MOD | Amiga/PC tracker module |
| MOV | QuickTime for Windows movie |
| MP2 | MPEG Audio Layer 2 |
| MP3 | MPEG Audio Layer 3 (AC3) |
| MPA | MPEG-related file (MIME type 'mpeg') |
| MPE | MPEG animation |
| MPEG | MPEG animation |
| MPG | MPEG animation |
| MPP | Microsoft Project file |
| MPP | CAD drawing file format |
| MPR | Microsoft FoxPro menus (compiled) |
| MP2 | MPEG Audio Layer 2 file (MIME video file) |
| MP3 | MPEG Audio Layer 3 (AC3) file |
| MRI | MRI Scan |
| MSA | Magic Shadow Archive |
| MSDL | Manchesters Scene Description Language |
| MSG | Microsoft Mail message |
| MSN | Microsoft Network document |
| MSN | Descent Mission File |
| MSP | Microsoft Paint bitmap |
| MTM | MultiTracker music module (MOD) file |
| MUL | Online game called Ultima online |
| MUS | Music |
| MUS10 | Mus10 audio |
| MVB | Microsoft Multimedia Viewer file |
| MWP | Lotus Wordpro 97 Smartmaster file |
| NAN | Nanoscope files (Raw Grayscale) |
| NAP | NAP Metafile |
| netCDF | network Common Data Form |
| NCB | Microsoft Developer Studio file |
| NCD | Norton Change Directory |
| NCF | Netware Command File |
| NCF | Lotus Notes internal clipboard |
| NDO | 3D low-polygon modeler, Nendo |
| NFF | Neutral File Format |
| NIL | Norton Icon Library file (EasyIcons-compatible) |
| NIST | NIST Sphere audio |
| NLB | Oracle 7 data |
| NLM | Netware Loadable Module |
| NLS | National Language Support file used for localization (for example, by Uniscape) |
| NLU | Norton Live Update E-Mail Trigger file |
| NSF | Lotus Notes database |
| NS2 | Lotus Notes database (version 2) |
| NST | Noise Tracker music module (MOD) file |
| NTF | Lotus Notes database template |
| NWC | Noteworthy Composer song file |
| NWS | Microsoft OutlookExpress news message (MIME RFC822) |
| O01 | Typhoon voice file |
| OBD | Microsoft Office binder template |
| OBD | Microsoft Office Binder |
| OBJ | Object file |
| OBZ | Microsoft Office Binder Wizard |
| OCX | Microsoft Object Linking and Embedding custom control |
| ODS | Microsoft Outlook Express mailbox file (?) |
| OFF | 3D mesh Object File Format |
| OFN | Microsoft Office FileNew file |
| OFT | Microsoft Outlook template |
| OKT | Oktalyzer music module (MOD) file |
| OLB | OLE Object Library |
| OLE | OLE object |
| OOGL | Object Oriented Graphics Library |
| OPL | Organiser Programming Language source file - Psion/Symbian |
| OPO | OPL output executable file |
| OPT | Microsoft Developer Studio file |
| OPX | OPL extension DLL |
| ORC | Oracle 7 script |
| ORG | Lotus Organiser file |
| OR2 | Lotus Organiser 2 file |
| OR3 | Lotus Organiser 97 file |
| ORA | Oracle 7 configuration |
| OSS | Microsoft Office Search file |
| OST | Microsoft Exchange/Outlook Offline file |
| OTL | Super NoteTab template file (Fookes) |
| P10 | Tektronix Plot 10 drawing |
| P65 | Pagemaker 6.5 file |
| P7C | Digital ID file (MIME) |
| PAB | Microsoft Personal Address Book |
| PAC | SB Studio II package |
| PAK | Quake WAD file |
| PAL | A compressed file |
| PAS | Pascal source code (Borland) |
| PAT | DataCAD Hatch pattern file |
| PAT | Corel Draw pattern |
| PAT | Advanced Gravis Ultrasound/Forte tech. Patch |
| PBD | PowerBuilder Dynamic library, an alternative to a native DLL |
| PBF | Turtle Beach Pinnacle Bank File |
| PBK | Microsoft Phonebook |
| PBL | PowerBuilder Library used in the PowerBuilder development environment |
| PBM | Portable bitmap |
| PBR | PowerBuilder Resource |
| PCD | Kodak Photo-CD image |
| PCD | P-Code compiled test scripts as in Microsoft Tst and Microsoft Visual Test |
| PCE | Maps Eudora mailbox names to DOS filenames |
| PC | Hewlett-Packard Printer Control Language file (printer-ready bitmap) |
| PCM | Audio file format |
| PCM | OKI MSM6376 synth chip PCM format |
| PCP | Symantec Live Update Pro file |
| PCS | PICS animation |
| PCT | Macintosh PICT drawing |
| PCX | ZSoft PC Paintbrush bitmap |
| Adobe Acrobat Portable Document Format or Netware Printer Definition File | |
| PDB | 3Com Palmpilot database file |
| Package Definition File from Microsoft Systems Management Server | |
| PDQ | Patton&Patton Flowcharting PDQ Lite file |
| PF | Aladdin Systems Private Files encrypted file |
| PFA | Type 1 font (ASCII) |
| PFB | Type 1 font (binary) |
| PFC | PF Component |
| PFM | Printer Font Metrics |
| PGL | HP Plotter drawing |
| PGM | Portable Graymap (bitmap) |
| PGP | PGP encrypted file |
| PH | Temporary file generated by Microsoft Help Compiler |
| PHTML | Perl-parsed HTML |
| PIC | PC Paint bitmap |
| PIC | Lotus picture |
| PIC | Macintosh PICT drawing |
| PICT | Mac PICT image file |
| PIF | Program Information File |
| PIF | IBM PIF drawing |
| PIG | Lucas Arts Dark Forces WAD file |
| PIN | Epic Pinball data file |
| PIN | Epic Pinball data file |
| PIX | Inset Systems bitmap |
| PJ | MKS Source Integrity file |
| PJX | Microsoft's Visual Foxpro Project |
| PJT | Microsoft's Visual Foxpro Project |
| PKG | Microsoft Developer Studio application extension (similar to a DLL file) |
| PKR | PGP Public Keyring |
| PL | Perl program |
| PLG | A file format use by REND386/AVRIL |
| PLI | Oracle 7 data description |
| PLM | DisorderTracker2 module |
| PLS | DisorderTracker2 sample |
| PLS | MPEG PLayList file (used by WinAmp) |
| PLT | HPGL Plotter drawing |
| PLT | AutoCAD Plot drawing |
| PLT | Gerber sign-making software |
| PM5 | Pagemaker 5.0 file |
| PM6 | Pagemaker 6.0 file |
| PNG | Portable Network Graphics bitmap |
| PNG | Paint Shop Pro Browser catalogue |
| PNT | MacPaint graphic file |
| PNTG | Same as PNT file |
| POG | Descent2 PIG file extension |
| POT | Microsoft PowerPoint Template |
| POV | Persistence of Vision ray-tracer |
| PP4 | Picture Publisher 4 bitmap |
| PPA | Microsoft PowerPoint Add-in |
| PPF | Turtle Beach Pinnacle Program File |
| PPM | Portable Pixelmap bitmap |
| PPP | Parson Power Publisher |
| PPP | Serif PagePlus desktop publishing default output |
| PPS | Microsoft PowerPoint slide show |
| PPS | Paint Shop Pro image |
| PPT | Microsoft PowerPoint presentation |
| PRC | 3Com Palmpilot resource (text or program) file |
| PRE | Lotus Freelance presentation |
| PRF | Windows system file |
| PRF | Macromedia Director settings file |
| PRG | dBase, Clipper, and FoxPro program source files |
| PRG | WAVmaker program |
| PRJ | 3d Studio (DOS) project file |
| PRN | Print Table (space delimited text) |
| PRN | DataCAD Windows Printer file |
| PRS | Harvard Graphics for Windows presentation |
| PRT | A print-formatted file |
| PRV | A PsiMail Internet provider template file |
| PRZ | Lotus Freelance Graphics 97 file |
| PS | Postscript-formatted file (a Postscript printer-ready file) |
| PSB | Pinnacle Sound Bank |
| PSD | Adobe Photoshop bitmap |
| PSI | PSION a-law audio |
| PSM | Protracker Studio Module format |
| PSM | Sound data for Epic's games |
| PST | Microsoft Outlook Personal Folder File |
| PTM | Polytracker music module (MOD) file |
| PUB | Ventura Publisher publication |
| PUB | Microsoft Publisher document |
| PWD | Microsoft Pocket Word document |
| PWL | Windows 95 password list file |
| PWP | Photoworks image file (a roll of file that can be viewed using Photoworks) |
| PWZ | Microsoft PowerPoint Wizard |
| PXL | Microsoft Pocket Excel spreadsheet |
| PY | Save emessages from Yahoo |
| QAD | PF QuickArt Document |
| QBW | QuickBooks for Windows file |
| QDT | Quick Books data file from the Quicken UK Accountancy/Tax/Invoice program |
| QD3D | Apple's QuickDraw 3D Metafile format |
| QFL | FAMILY LAWYER document |
| QIC | Microsoft Backup file |
| QIF | QuickTime-related image (MIME) |
| QIF | Quicken Import File |
| QLB | Quick Library |
| QM | Quality Motion file |
| QRY | Microsoft Query |
| QST | Quake Spy Tab file |
| QT | QuickTime Movie |
| QTI | QuickTime-related image |
| QTIF | QuickTime-related image |
| QTM | QuickTime Movie |
| QTP | QuickTime Preferences file |
| QTS | Mac PICT image file |
| QTS | QuickTime-related image |
| QTX | QuickTime-related image |
| QW | Symantec Q&A Write program file |
| QXD | Quark XPress file |
| R | Pegasus Mail resource file |
| RA | Real Audio sound |
| RAM | RealAudio metafile |
| RAR | RAR compressed archive (Eugene Roshall's format) |
| RAS | Sun Raster Images bitmap |
| RAW | Raw File Format (bitmap) |
| RAW | Raw signed PCM data |
| RAW | Raw signed PCM data |
| RBH | Maintained by RoboHELP, the RBH file adds to the information contained in the Help project file |
| RDF | Resource Description Framework file (related to XML and metadata) |
| RDL | Descent Registered Level |
| REC | Recorder macro |
| REC | RapidComm voice file |
| REG | Registration file |
| RES | Microsoft Visual C++ Resource |
| RGB, SGI | Silicon Graphics RGB files |
| RFT | Revisable Form Text (part of IBM's DCA or Document Content Architecture) |
| RLE | Run-Length Encoded bitmap |
| RL2 | Descent2 Registered Level |
| RM | Real Audio video file |
| RMD | Microsoft RegMaid document |
| RMF | Rich Map Format (used by 3-D game editors to store a map) |
| RMI | MIDI music |
| ROV | Rescue Rover data file |
| RPM | RedHat Package Manager package (for Linux) |
| RPT | Microsoft Visual Basic Crystal Reports file |
| RRS | save file for the ace game Road Rash |
| RSL | Borderland's Paradox 7 reports |
| RTF | Rich Text Format document |
| RTM | Real Tracker music module (MOD) file |
| RTK | Used by RoboHELP to simulate the search feature of Windows help |
| RTS | RealAudio's RTSL document |
| RTS | RoboHELP to speed complex operations |
| RUL | Extension used in InstallShield |
| RVP | Microsoft Scan Configuration file (MIME) |
| RXX | RAR compressed files from a multi-volume archive (xx = a number from 01 to 99) |
| S | Assembler source code |
| S3I | Scream Tracker v3 instrument |
| S3M | Sound module file for ScreamTracker v3 |
| SAM | Ami Professional document |
| SAM | Signed 8bit sample data |
| SAV | Saved game file |
| SB | Raw Signed Byte (8bit) data |
| SBK | Creative Labs Soundfont 1.0 Bank file (Soundblaster)/EMU SoundFont v1.x Bank files |
| SBL | Shockwave Flash object |
| SC2 | Microsoft Schedule+ 7 file format |
| SC2 | SAS catalog (Windows 95/NT, OS/2, Mac) |
| SCC | Microsoft Source Safe file |
| SCD | Matrix/Imapro SCODL slide image |
| SCD | Microsoft Schedule+ 7 |
| SCF | Windows Explorer command file |
| SCH | Microsoft Schedule+ 1 |
| SCI | ScanVec Inspire Native file format |
| SCN | trueSpace2 scene |
| SCP | Dial-Up Networking Script |
| SCR | Windows screensaver |
| SCR | Fax image |
| SCT | SAS catalog (Dos) |
| SCT | Scitex CT bitmap |
| SCT | Microsoft FoxPro forms |
| SCT01 | SAS catalog (Unix) |
| SCV | ScanVec CASmate Native file format |
| SCX | Microsoft FoxPro forms |
| SD | Sound Designer I audio |
| SD2 | Sound Designer 2 flattened file/data fork |
| SD2 | SAS database (Windows 95/NT OS/2, Mac) |
| SDF | System Data File Format - legacy Unisys (Sperry) format |
| SDK | Roland S-series floppy disk image |
| SDL | SmartDraw library |
| SDR | SmartDraw drawing |
| SDS | Raw Midi Sample Dump Standard file |
| SDT | SmartDraw template |
| SDV | Semicolon Divided Values file |
| SDW | Lotus WordPro graphic file |
| SDW | Raw Signed DWord (32bit) data |
| SDX | Midi Sample Dump Standard files compacted by SDX |
| SEA | Self-expanding archive (used by Stuffit for Mac files and possibly by others) |
| SEP | Tagged Image File Format (TIFF) bitmap |
| SES | Cood Edit Session file (common digital audio editor file ) |
| SF | IRCAM SoundFile format |
| SF2 | Emu SoundFont v2.0 file |
| SFD | SoundStage Sound File Data |
| SFI | SoundStage Sound File Info |
| SFR | Sonic Foundry Sample Resource |
| SFW | Seattle Film Works (Mangled JPEG) |
| SFX | RAR self-extracting archive |
| SF2 | Creative Labs Soundfont 2.0 Bank file (Soundblaster) |
| SGML | Standard Generalized Markup Language |
| SHB | Corel Show presentation |
| SHB | Document shortcut file |
| SHG | Hotspot bitmap |
| SHP | 3D Studio (DOS) shapes file |
| SHP | File format used by some programs for 3D modeling of multipart interactive triangle models |
| SHS | Shell scrap file |
| SHW | Corel Show presentation |
| SIG | Signature file |
| SHTML | HTML file containing Server Side Includes (SSI) |
| SIT | Stuffit archive of Mac files |
| SIZ | Oracle 7 configuration |
| SKA | PGP secret Keyring |
| SKL | Macromedia Director resource file |
| SL | PACT's Save Layout extension |
| SLB | AutoDesk Slide Library File Format |
| SLD | AutoDesk Slide File Format |
| SLK | Symbolic Link (SYLK) spreadsheet |
| SM3 | DataCAD Symbol file |
| SMP | Samplevision format |
| SMP | Ad Lib Gold Sample |
| SND | NeXT sound |
| SND | Mac Sound Resource |
| SND | Raw unsigned PCM data |
| SND | AKAI MPC-series sample |
| SNDR | Sounder sound file |
| SNDT | Sndtool sound file |
| SOU | SB Studio II sound |
| SPD | Speach Data file |
| SPL | Shockwave Flash Object |
| SPL | Digitracker Sample |
| SPPACK | SPPack sound sample |
| SPRITE | Acorn's bitmap format |
| SQC | Structured Query Language (SQR) common code file |
| SQL | Informix SQL queries |
| SQL | Generally used by database products as an extension for SQL queries (scripts, text, or binary) |
| SQR | Structured Query Language (SQR) program file |
| SSD01 | SAS data sets (Unix) |
| SSD | SAS database (Dos) |
| STM | Shorter suffix for .shtml, an HTML file containing a Server Side Include (SSI) |
| STM | Scream Tracker v2 music module (MOD) file |
| ST | Atari ST disk image |
| STR | Sceensaver exetension |
| STY | Ventura Publisher style sheet |
| SVX | Amiga 8SVX sound |
| SVX | Interchange file format, 8SVX/16SV |
| SW | Raw signed Word (16bit) data |
| SWA | Shockwave audio file in Macromedia Director (an MP3 file) |
| SWF | Shockwave Flash object |
| SWP | DataCAD Swap file |
| SYS | System file |
| SYW | Yamaha SY-series wave files |
| TAB | Guitar Tablature file |
| TAR | Tape Archive |
| TAZ | Unix Gzip/Tape Archive |
| TBK | Asymetrix Toolbook interactive multimedia files |
| TCL | Script in the TCL/TK Language |
| TDB | Thumbs Plus database |
| TDDD | A file format use by the Imagine & Turbo Silver ray-tracers |
| TEX | Texture file |
| TGA | Targa bitmap |
| TGZ | Unix Gzip/Tape Archive |
| THEME | Windows 95 Desktop Theme |
| THN | Graphics Workshop for Windows thumbnail |
| TIF | Tag Image File Format (TIFF) bitmap |
| TIFF | Tag Image File Format (TIFF) bitmap |
| TIG | Tiger file, used by US government to distribute maps |
| TLB | OLE Type Library |
| TLE | Two-Line Element set (NASA) |
| TMP | Windows temporary file |
| TOC | Table of contents of Eudora mailboxes |
| TOL | Kodak photoenhancer |
| TOS | The Operation System for Atari line of 16/32 and 32/32 computers |
| TPL | CakeWalk Audio Template file |
| TPL | DataCAD Template file |
| TPP | Teleport Pro Project |
| TRK | Kermit scrpit file |
| TRM | Terminal file |
| TRN | MKS Source Integrity project usage log |
| TTF | TrueType font |
| TTK | Corel Catalyst Translation Tool Kit |
| TWF | TabWorks file |
| TWW | Tagwrite Template |
| TX8 | MS-DOS text |
| TXB | Descent/D2 Encoded Briefing File |
| TXT | ASCII text-formatted data |
| TXW | Yamaha TX16W wave files |
| TZ | Old compression format file |
| T2T | Sonata CAD modelling software file |
| UB | Raw unsigned byte (8-bit) data |
| UDF | Windows NT Uniqueness Database File |
| UDW | Raw unsigned doubleword (32-bit) data |
| ULAW | US telephony format (CCITT G.711) audio |
| ULT | Ultratracker music module (MOD) file |
| UNI | MikMod UniMod formatted file |
| URL | Internet shortcut file |
| USE | MKS Source Integrity file |
| UU | UU-encoded file |
| UUE | UU-encoded file |
| UW | Raw unsigned word (16-bit) data |
| UWF | UltraTracker Wave file |
| V8 | Covox 8-bit audio file |
| VAP | Annotated speech |
| VBA | VBase file |
| VBP | Visual Basic Project |
| VBW | Microsoft Visual Basic workspace |
| VBX | Visual Basic custom control |
| VCE | Natural MicroSystems (NMS) unformatted voice file (used by Cool Edit) |
| VCF | Virtual card file (Netscape) |
| VCF | Vevi configuration file; defines objects for use with Sense8's WorldToolKit |
| VCT | Microsoft FoxPro class library |
| VCX | Microsoft FoxPro class library |
| VDA | Targa bitmap |
| VI | Virtual Instrument file from National Instruments LABView product |
| VIFF | Khoros Visualisation format |
| VIR | File identified as a virus-infected file by Norton AntiVirus and possibly others |
| VIV | VivoActive Player streaming video file |
| VIZ | Division's dVS/dVISE file |
| VLB | Corel Ventura Library |
| VMF | FaxWorks audio file |
| VOC | Creative Labs Sound Blaster audio file |
| VOX | Dialogic audio file coded using ADPCM |
| VOX | Natural MicroSystems (NMS) formatted voice file |
| VOX | Talking Technology audio file |
| VP | Ventura Publisher publication |
| VQE | Yamaha Sound-VQ Locator file |
| VQF | Yamaha Sound-VQ file (possible emerging standard) |
| VQL | Yamah Sound-VQ Locator file |
| VRF | Oracle 7 configuration |
| VRML | A VRML file |
| VSD | Visio drawing (flow chart or schematic) |
| VSL | Download List file (GetRight) |
| VSS | Visio Stencil file |
| VST | Targa bitmap |
| VSW | Visio Workspace file |
| VXD | Microsoft Windows virtual device driver |
| WAB | Microsoft Outlook file |
| WAD | Large file for Doom game containing video, player level, and other information |
| WAL | Quake 2 texture file |
| WAV | Windows Waveform sound |
| WB1 | QuattroPro for Windows spreadsheet |
| WB2 | QuattroPro for Windows spreadsheet |
| WBK | Microsoft Word Backup |
| WBL | Argo WebLoad II upload file |
| WBR | Crick Software WordBar File |
| WBT | Crick Software Wordbar Template |
| WCM | WordPerfect Macro |
| WDB | Microsoft Works database |
| WEB | CorelXara Web document |
| WFB | Turtle Beach WaveFront Bank (Maui/Rio/Monterey) |
| WFD | Turtle Beach WaveFront Drum set (Maui/Rio/Monterey) |
| WFN | symbols for use in Corel Draw |
| WFP | Turtle Beach WaveFront Program (Maui/Rio/Monterey) |
| WGP | Wild Board Games data file |
| WID | Ventura width table |
| WIL | WinImage file |
| WIZ | Microsoft Word Wizard |
| WK1 | Lotus 123 versions 1 & 2 spreadsheet |
| WK3 | Lotus 123 version 3 spreadsheet |
| WK4 | Lotus 123 version 4 spreadsheet |
| WKS | Lotus 123 Worksheet spreadsheet |
| WKS | Microsoft Works document |
| WLD | REND386/AVRIL file |
| WLF | Argo WebLoad I upload file |
| WLL | Microsoft Word Add-In |
| WMF | Windows Metafile |
| WOW | Grave Composer music module (MOD) file |
| WP | WordPerfect document |
| WPW | Novel PerfectWorks document |
| WP4 | WordPerfect 4 document |
| WP5 | WordPerfect 5 document |
| WP6 | WordPerfect 6 document |
| WPD | WordPerfect Demo |
| WPD | WordPerfect Document |
| WPG | WordPerfect Graphic |
| WPS | Microsoft Works document |
| WPT | WordPerfect Template |
| WQ1 | QuattroPro/DOS spreadsheet |
| WQ2 | QuattroPro/DOS version 5 spreadsheet |
| WR1 | Lotus Symphony |
| WRI | Write document |
| WRK | Cakewalk music audio project file |
| WRL | Virtual Reality model |
| WRZ | Another VRML fileject |
| 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 |
| WSD | WordStar 2000 document |
| WVL | Wavelet Compressed Bitmap |
| WWL | Microsoft Word add-in file |
| X | AVS image format |
| XAR | Corel Xara drawing |
| XBM | A MIME 'xbitmap' image |
| XI | Instrument sample file for ScreamTracker |
| XIF | Wang imaging file (comes with Windows 95) |
| XLA | Microsoft Excel add-in |
| XLB | Microsoft Excel toolbar |
| XLC | Microsoft Excel chart |
| XLD | Microsoft Excel dialogue |
| XLK | Microsoft Excel backup |
| XLL | Microsoft Excel add-in file |
| XLM | Microsoft Excel macro |
| XLS | Microsoft Excel worksheet |
| XLT | Microsoft Excel template |
| XLV | Microsoft Excel VBA module |
| XLW | Microsoft Excel workbook / workspace |
| XM | FastTracker 2, Digital Tracker music module (MOD) file |
| XNK | Microsoft Exchange shortcut file |
| XPM | X BitMap format |
| XR1 | Epic MegaGames Xargon data file |
| XTP | XTree data file |
| XWD | X Window Dump format |
| XWF | Yamaha XG Works file (MIDI sequencing) |
| XY3 | XYWrite III document |
| XY4 | XYWrite IV document |
| XYP | XYWrite III Plus document |
| XYW | XYWrite for Windows 4.0 document |
| X16 | Macromedia Extra (program extension), 16 bit |
| X32 | Macromedia Extra (program extension), 32 bit |
| YAL | Arts & Letters clipart library |
| YBK | Microsoft Encarta Yearbook |
| Z | Unix Gzip |
| ZIP | Zip file |
| ZOO | An early compressed file format |
| 000-999 | Used to number old (backup) versions of files (for example, CONFIG.SYS when changed by an installation program); also used to number related data files for multiple users of a small- scale PC application |
| 12M | Lotus 123 97 Smartmaster file |
| 123 | Lotus 123 97 file |
| 2GR and 3GR | VGA Graphics driver/configuration files under Windows |
| 3DM | 3D NURBS modeler, Rhino |
| 3DS | A file in 3D Studio (for DOS) format |
| 386 | A file for use in an 80386 or higher microprocessor |
| 4GE | Informix 4GL compiled code |
| 4GL | Informix 4GL source code |
| 669 | Composer 669, Unis Composer music mod file |
| 669 | 669 tracker module |
| #01 and higher | A method of numbering picture files for a roll of film that has been scanned for computer presentation |
| $$$ | Used by OS/2 to keep track of archived files |
| @@@ | Screen files used in the installation and instruction on use of such applications as Microsoft Codeview for C |