Filename Extensions
Select the initial letter:
Letter D
| Ext. | Description | 
|---|---|
| D64 | Commodore 64 emulator disk file | 
| DA0 | Windows registry backup | 
| DAC | Sound (TI/MIT DAC format) (byte reversed ADC file) | 
| DAT | Datafile | 
| DAT | Video CD MPEG movie | 
| DAT | WordPerfect merge DATa | 
| DB | Paradox/dbVista/Smartware/XTreeGold DataBase | 
| DB | dBASE IV/dBFast/MultiEdit configuration | 
| DB# | Database (dBASE # / from dBASE IV renamed) | 
| DB$ | dBASE/Modula2 temporary file | 
| DB2 | dBASE II database | 
| DB3 | dBASE III database | 
| DBA | Turbo Prolog/DataEase database | 
| DBC | Visual FoxPro DataBase Container file | 
| DBD | Business Insight business data | 
| DBD | Clarion Modula-2 debug info | 
| DBF | dBASE/FoxPro/dBFast/DataBoss database | 
| DBG | DeBuGger script (DOS debug/Watcom debugger) | 
| DBG | Symbolic DeBuGing information (Ms C/C++) | 
| DBK | dBASE Database Backup | 
| DBM | DataEase datafile | 
| DBM | DataBoss Menu template | 
| DBO | dBASE IV compiled program | 
| DBO | Program (dBASE IV / compiled) | 
| DBQ | Paradox memo | 
| DBS | Managing Your Money/ProDas/SQL Windows datafile | 
| DBS | MS Word/Works printer description file | 
| DBT | dBASE/dBFast memo text for database with same name | 
| DBT | Clipper database text | 
| DBT | FoxPro Foxbase+ style memo | 
| DBT | DBF momo file | 
| DBW | DataBoss Windows file | 
| DBX | DataBeam image | 
| DC5 | DataCAD drawing | 
| DCA | Visual Basic active designer cache | 
| DCA | Document Content Architecture text file (IBM DisplayWrite) | 
| DCF | Disk image file | 
| dcf | Driver Configuration File | 
| DCL | Borland Delphi Component Library | 
| DCM | DICOM/ACR image | 
| DCP | Data/Device CodePage (OS/2) | 
| DCR | Shockwave/Macromedia Director data | 
| DCS | QuarkXPress bitmap image (Quark Desktop Color Separation EPS file) | 
| DCS | Datafile (ACT! Activity Files) | 
| DCS | Desktop Color Separation file | 
| DCT | Dictionary | 
| DCU | Borland Delphi Compiled Unit | 
| DCX | ZSoft PC Paintbrush Multi-Page PCX, used as fax | 
| DCX | FAX (PCC) | 
| DD | DiskDoubler compressed Macintosh file archive | 
| DDB | Bitmap image | 
| DDE | Dynamic Data Exchange (binary) | 
| DDF | Data Definition File describing database (Btrieve, Xtrieve) | 
| DDI | DiskDupe disk image | 
| DDIF | Bitmap image (DEC DDIF file) | 
| DDP | OS/2 Device Driver Profile file | 
| DEB | Debug script (DOS DEBug) | 
| DEC | DECoded file | 
| DEF | Linker DEFinition file, used in programming environments | 
| DEF | Assembly header file (Geoworks Esp) | 
| DEF | SmartWare II data | 
| DEF | Defaults/Definitions | 
| DEFI | Oracle 7 de-install script | 
| DEM | VistaPro DEM image | 
| DEM | USGS & GTopo30 3D file | 
| DEM | Demonstration | 
| dem | Demonstration | 
| DEP | Visual Basic setup wizard DEPendency file | 
| DER | Internet security certificate | 
| DES | Description file | 
| DESC | Description file | 
| DEV | Device driver | 
| DEWF | Macintosh SoundCap/SoundEdit instrument | 
| DF | NCSA bitmap image (Hierarchical Data File) | 
| DFD | Prosa Data Flow Diagram graphic | 
| DFD | Dyadic functions (ABC programming language) | 
| DFI | Digifont outline font description | 
| DFL | Default program settings (Signature) | 
| DFM | Prosa Data Flow Diagram model file | 
| DFM | Borland Delphi/C++ Builder form file | 
| DFS | Delight sound file | 
| DFV | MS Word printing form | 
| DFX | AutoCAD 3D/ CAD graphics | 
| DFX | Micrografx effects (=DLL) | 
| DGN | MicroStation CAD vector drawing | 
| DGS | Diagnostics | 
| DH | Geoworks dependency information for .ph | 
| DHP | Dr. Halo bitmap image | 
| DHT | Gauss data file | 
| DIA | Diagraph graphics (Computer Support Corporation) | 
| DIB | OS/2 or Windows bitmap image (Device Independent Bitmap) | 
| DIC | Dictionary file | 
| DIF | Visicalc database (Data Interchange Format) | 
| DIF | Difference data file (Patch script) | 
| DIF | OS/2 Display Information File | 
| DIF | Video | 
| DIFF | DIFFerence data file (Patch script) | 
| DIG | Sound Designer I audio | 
| DIL | Lotus library for graphic import (Approach) | 
| DIP | Debug Info Processor (Watcom Debugger) | 
| DIR | CPS Backup/VAX DIRectory file | 
| DIR | Procomm Plus dialing DIRectory file | 
| DIR | MacroMind Director 4.x movie format | 
| DIR | Catalog file (CP Backup) | 
| DIR | Telephone directory | 
| DIR | Directory for dbm files | 
| DIS | DKB & Qrt Ray-Tracer | 
| DIS | VAX Mail DIStribution list | 
| DIS | CorelDraw thesaurus | 
| DIZ | Mostly as 'File_id.diz' a small description of a program (description in Zip) | 
| DJVU | DjVu image | 
| DKB | DKB-Trace Raytraced image | 
| DL | Display/DL Viewer animation | 
| DL | Animation (DL-View) | 
| DLD | Lotus 1-2-3 data | 
| DLG | U.S. Geological Survey Digital Line Graph vector image (geographical data) | 
| DLG | Windows SDK DiaLoG editor data | 
| DLG | DiaLoG resources (DN) | 
| DLL | Windows or OS/2 Dynamic Link Library | 
| DLM | FileMaker Pro data | 
| DLS | Downloadable sound | 
| DLS | Norton Disklock setup | 
| DMD | Visual dBASE data module | 
| DMD | Devicemanager | 
| DMF | Delusion Digital Music File | 
| DMF | Mod music file from X-Tracker | 
| DMO | Demo | 
| DMP | DuMP file (eg. screen or memory) | 
| DMS | Compressed Amiga file archive (DiskMasher) | 
| DMS | Disk archiver file | 
| DN1 | Duke Nukem 1 data file | 
| DOB | Visual Basic user document form file | 
| DOC | Document file | 
| DOG | Screen file (Laughing Dog Screen Maker) | 
| DOH | Geoworks dependency information for .poh | 
| DOK | DOKument, chances are it's a plain text file | 
| DOS | DOS related file (Win95) | 
| DOS | 1st Reader external command file | 
| DOT | MS Word DOcument Template | 
| DOT | CorelDraw line-type definition file | 
| DOV | Programmteil von PCTools | 
| DOX | Visual Basic user document binary form file | 
| DOX | MultiMate 4.0/MS Word text document | 
| DOZ | Description Out of Zip (VENDINFO) | 
| DP | Daily Planner calendar file | 
| DP | DataPhile data file | 
| DP | Primary data file (THOR database) | 
| DP | Common ground document | 
| DPD | Dyadic predicates (ABC programming language) | 
| DPJ | Borland Delphi project | 
| DPL | Borland Delphi packed library | 
| DPR | Borland C++/Delphi default project and state-related information | 
| DPS | Color file | 
| DPX | Digital moving Picture eXchange bitmap | 
| DRAW | Vector image (Acorn's object-based format) | 
| DRF | Micrografx-Draw vector file | 
| DRS | WordPerfect for Win Display ReSource | 
| DRV | Hardware DRiVer | 
| DRW | Lotus Freelance image | 
| DS | TWAIN Data Source (=DLL) | 
| DS4 | Micrografx Designer vector image | 
| DSA | PKCS7 signature, DSA | 
| DSC | SoftImage SCene file | 
| DSC | DeSCription file | 
| DSC | Oracle DiSCard file | 
| DSD | DataShaper database | 
| DSF | Delusion Digital Sound File | 
| DSF | Micrograpf Designer document | 
| DSG | 'DOOM' savegame | 
| DSK | Novell NetWare disk drivers | 
| DSK | Borland C++ project DeSKtop | 
| DSL | DSSSL Style Sheet | 
| DSL | X-Tracker Sample Bibliothek | 
| DSM | DSI Digital Sound Module | 
| DSM | MS Developer Studio macro | 
| DSN | ODBC Data Source | 
| DSN | DeSigN (Object System Designer) | 
| DSP | DLL used by Norton viewer | 
| DSP | DiSPlay parameters (Signature) | 
| DSP | Dynamic Studio Professional Module | 
| DSP | Dr. Halo graphics DiSPlay driver | 
| DSP | MS Developer Studio | 
| DSQ | Corel query file | 
| DSR | Visual Basic active DeSigneR file | 
| DSR | WordPerfect for Win driver resource | 
| DSS | Screensaver file (DCC) | 
| DSS | Digital Soup Sound | 
| DST | Embroidery machines graphics data | 
| DST | WAIN (Scanner spec) data source DLL (Win) | 
| DSW | Borland C++/MS Developer Studio project workspace | 
| DSX | Visual Basic active designer binary file | 
| DT_ | Data fork of a Macintosh file (Mac-ette) | 
| DTA | Datafile | 
| DTB | UnInstaller internal database file | 
| DTD | Document Type Definition (SGML data) | 
| DTED | Digital Terrain Elevation Data (geographical data format) | 
| DTF | Q&A/PFS database file | 
| DTM | DigiTrakker Module | 
| DTP | PageMagic/Publish-It!/Publisher3 publication | 
| DTP | Dokument von Press International, 1st Press oder Timeworks Publisher | 
| DTX | Q&A file | 
| DUN | Dial-up networking export file | 
| DUP | Backup file (DUPlicate) | 
| DV | Video | 
| DV | Desqview Scriptfile | 
| DVC | Lotus 1-2-3 data | 
| DVG | GraphikWorks vector image | 
| DVI | TeX DeVice Independent text document | 
| DVP | AutoCAD DeVice Parameter file | 
| DVP | DESQview program information file | 
| DVP | AutoCAD device parameter file | 
| DVP | Desqview configuration file | 
| dvr | Device Driver | 
| DW2 | DesignCAD for Windows drawing | 
| DWB | Coryphaeus Software Designer workbench | 
| DWC | DWC compressed file archive | 
| DWC | Archiv (DWC - Dean W. Cooper's Packer) | 
| DWD | DiamondWare digitized sound | 
| DWF | CAD programs vector image | 
| DWG | AutoCAD/Drafix vector image | 
| DX | Text file (DEC WPS/DX format - DEC WPS Plus) | 
| DX | Cross-reference data (THOR database) | 
| DX | Data explorer document | 
| DXB | AutoCAD drawing binary exchange format (vector) | 
| dxb | Drawing Interchange Binary (AutoCAD) | 
| DXN | Fujitsu dexNET fax | 
| DXR | Macromedia Director protected (non-editable) movie | 
| DY22 | Sound (Dyaxis format) (sampling rate 22k) | 
| DY44 | Sound (Dyaxis format) (sampling rate 44k) | 
| DYL | EPOC16 dynamic link library | 
| DYN | Lotus 1-2-3 data | 
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