File Extension Database 
The Cyber Tech Help File Extension Database is a searchable A-Z of file extensions.
To use the File Extension Database simply click on the first letter of the extension you are looking for.
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Your Results are as follows :
- .D00 - Blaster Master Pro File
- .D2S - Character file (Diablo 2)
- .D64 - Commodore 64 Emulator Disk Image
- .DAT - Data file in special format or ASCIIGunlok ArchiveMitsubishi DJ-1000 and Photorun Native FormatNascar Racing ArchiveSPOT GraphicWordPerfect Merge Data
- .DAY - Journal file
- .DB - Configuration (dBASE IV - dBFast)Database (Paradox - Smartware)
- .DB$ - Temperature debug info (Clarion Modula-2)Temporary file (dBASE)
- .DB2 - Database (dBASE II)
- .DB3 - Database (dBASE III)
- .DBA - Datafile (DataEase)
- .DBB - ANSYS Database BackupMopheus music file
- .DBD - Business data (Business Insight)Debug info (Clarion Modula-2)
- .DBF - Database file (dBASE III/IV - FoxPro - dBFast - DataBoss)Oracle 8.x Tablespace File
- .DBG - Symbolic debugging information (MS C/C++)
- .DBK - Database backup (dBASE IV)
- .DBL - Windows XP Activation file
- .DBM - Datafile (DataEase)Cold Fusion Template Menu template (DataBoss)
- .DBO - Compiled program (dBASE IV)
- .DBS - Database in SQL Windows formatDatafile (PRODAS)Printer description file (Word - Works)
- .DBT - Data Base Text (Clipper)Foxbase+ style memo (FoxPro)Memo file for database w/same name (dBASE IV - dBFast)
- .DBW - Windows file (DataBoss)
- .DBX - DatabaseDataBeam ImageMS Visual Foxpro Table
- .DCA - Document Content Architecture text file (IBM DisplayWrite)
- .DCF - Disk image file
- .DCM - DCM Module FormatDicom
- .DCP - Data CodePage (OS/2)
- .DCR - Kodak Proprietary Image FormatShockwave file
- .DCS - Bitmap graphics (CYMK format) (QuarkXPress)Datafile (ACT! Activity Files)
- .DCT - Database dictionary (Clarion Database Developer)Spell checking dictionary (Harvard Graphics 3.0 - Symphony)
- .DCX - FAX ImageElectraSoft FaxPC-Paintbrush fileBitmap Graphics (Multipage PCX) MacrosMS Visual Foxpro Database Container
- .DD - Compressed Macintosh file archive created by DISKDOUBLER
- .DDB - Bitmap graphics
- .DDC - DivX Descriptor Description File
- .DDF - MS Data Definition Language file
- .DDI - Diskdupe Image file (ddupe322.zip)
- .DDP - Device Driver Profile file (OS/2)
- .DE - MetaProducts Download Express incompletely downloaded file
- .DEB - Debug script (DOS Debug)
- .DEC - VersaPro Declaration file
- .DEF - Assembly header file (Geoworks)DATAIR data entry format fileDefaults - definitions
- .DEM - DemonstrationGraphics (VistaPro)
- .DES - Description TextTribes 2 Game fileQuickbooks TemplatePro/DESKTOP fileInterscope BlackBox file
- .DEV - Device driver
- .DFD - Data Flow Diagram graphic (Prosa)
- .DFF - Criterion RenderWare 3.x 3D object format
- .DFI - Outline font description (Digifont)
- .DFL - Default program settings (Signature)FreshDownloads (FreshDownload List temp file)
- .DFM - Data Flow Diagram model file (Prosa)
- .DFS - Delight Sound file
- .DFT - Fakt2000 fileSolidEdge CAD fileWorkshare Synergy filePC Draft file
- .DFV - Printing form (Word)
- .DFX - Drafix file
- .DGN - Graphics (MicroStation)
- .DGR - Fax Page (MS Outlook Express)DART Pro 98 File Group Details
- .DGS - Diagnostics
- .DH - Dependency information for .ph (Geoworks)
- .DHP - Dr. Halo PIC Format graphics (Dr. Halo II - III)
- .DHT - Datafile (Gauss)
- .DIA - Diagraph graphics (Computer Support Corporation)
- .DIB - Bitmap graphics (Device-Independent Bitmap)
- .DIC - Lotus Notes / Domino dictonary file
- .DIF - Database (VisiCalc)Output from Diff command - script for Patch commandText file (Data Interchange Format)
- .DIG - Digilink FormatSound Designer Audio FileText Document
- .DIP - Graphics
- .DIR - Dialing directory file (Procomm Plus)Directory file (VAX)Movie (MacroMind Director 4.x)
- .DIS - DATAIR data import specification fileDistribution file (VAX Mail)Thesaurus (CorelDraw)
- .DIZ - Description file (Description In Zip)
- .DJE - MattBatt iAM-player
- .DKB - Raytraced graphics (DKBTrace)
- .DL - Animation (Italian origin)
- .DL_ - Compressed .dll file in an Install Archive
- .DLD - Data (Lotus 1-2-3)
- .DLG - Dialog resource script file (MS Windows SDK)
- .DLL - Dynamic Link Library (Windows 3.x - OS/2)Export/import filter (CorelDRAW)
- .DLS - Setup (Norton Disklock)
- .DMF - Delusion/XTracker digital music filePacked Amiga Disk Image
- .DMG - Macintosh OS X Disk Image file
- .DML - Medical Manager DML System Script
- .DMO - Demo (Derive)
- .DMP - Dump file (eg. screen or memory)
- .DMS - Compressed Amiga file archive created by DISKMASHER
- .DNA - Desktop DNA data storage file
- .DNASYM - Desktop DNA compiled application script
- .DNE - Netica Bayes net file (Norsys Software Corp.)
- .DNG - Dungeon file
- .DNL - DigitalWebBook Electronic Book netMod Modem Firmware Upgrade file
- .DOC - Document text file
- .DOG - Screen file (Laughing Dog Screen Maker)
- .DOH - Dependency information for .poh (Geoworks)
- .DOS - External command file (1st Reader)Network driver (eg. pkt_dis.dos)Text file containing DOS specific info
- .DOT - Line-type definition file (CorelDRAW)Template (Word for Windows)
- .DOX - Text file (MultiMate 4.0)
- .DOZ - Description Out of Zip (VENDINFO)
- .DP - Calendar file (Daily Planner)Data file (DataPhile)
- .DPK - Delphi Package file
- .DPP - Serif DrawPlus Drawing
- .DPR - Default project- and state-related information (Borland C++)
- .DPS - DivX XP Skin
- .DPT - Desktop DNA template
- .DRA - Map Maker Pro GIS vector layer
- .DRS - Display Resource (WordPerfect for Win)
- .DRV - Device driver eg. for printer
- .DRW - Drawing (various)Vector graphics (Micrografx Designer)
- .DS4 - Vector graphics (Micrografx Designer 4.0)
- .DSA - DasyTec DASYLab file
- .DSB - DasyTec DASYLab file
- .DSC - Discard file (Oracle)
- .DSD - Database (DataShaper)
- .DSF - Micrografx DesignerPC-TRUST Document SignerDelusion/XTracker Digital Sample
- .DSK - Project desktop file (Borland C++ - Turbo Pascal)
- .DSM - Digital sound module (DSI)
- .DSN - Design (Object System Designer)
- .DSP - Display parameters (Signature)Graphics display driver (Dr.Halo)MS Developer Studio Project
- .DSR - Driver Resource (WordPerfect for Win)
- .DSS - Screensaver file (DCC)Sound (Digital Soup)
- .DST - PC-RDist Distribution file Embroidery Machine Stitch file (VeePro)
- .DSW - Desktop settings (Borland C++ 4.5)
- .DSY - PC Draft Symbol Library
- .DT_ - Data fork of a Macintosh file (Mac-ette)
- .DTA - Data file (Turbo Pascal - PC-File - Stata)
- .DTD - SGML Document Definition file
- .DTF - Database file (PFS - Q&A)
- .DTP - Document (Timeworks Publisher3)Publication (Publish-It!)
- .DUP - Duplicate Backup
- .DUS - Readiris font dictionary
- .DVC - Data (Lotus 1-2-3)
- .DVF - DV Studio Camcorder Graphics file
- .DVI - Device Independent document (TeX)
- .DVP - Desqview Program Information file (DESQview)Device parameter file (AutoCAD)
- .DVR-MS - files created by Stream Buffer Engine(SBE)
- .DW2 - Drawing (DesignCAD for windows)
- .DWC - Compressed file archive created by DWC (dwc-a501.exe)
- .DWD - Davka Writer fileDiamondWare Digitized file
- .DWF - Autodesk WHIP! Drawing Web fileMS WHIP autoCAD REader Drawing Web file
- .DWG - Drawing (Drafix)Drawing database (AutoCAD)
- .DWT - AutoCAD Template/Prototype fileMacromedia Dreamweaver Template fileDemon\'s World Game Texture file
- .DX - Text file (DEC WPS/DX format - DEC WPS Plus)
- .DXF - Drawing Interchange File Format vector graphics (AutoCAD)
- .DXN - Fax (Fujitsu dexNET)
- .DXR - Dependable Strengths Administrator ResourcesGreen Building Advisor fileMacromedia Director Protected Movie file
- .DYC - ICUII Videochat file
- .DYN - Data (Lotus 1-2-3)
- .DZ - Dzip Compressed file
You searched for the letter D.
