List of Extensions starting with the letter D
- .DAT
- Generic Data
- Video CD MPEG movie MPEG1
- Act of War game
- Antivitus Data AVG, Bitdefender
- AOL Messenger (AIM) BFTS database
- Apple Safari dictionary
- Clarion DOS database
- Corel WordPerfect merge
- LabVIEW binary datalog
- LEGO Star Wars game archive
- MapInfo native format
- Microsoft Internet Explorer cache
- Microsoft Word for DOS data
- Mozilla Firefox plug-in register
- Nero BackItUp drive image
- Skype local store
- Sony Digital Audio Tape
- SPOT graphic
- SPOT image format
- TomTom traffic data
- Yahoo! Instant Messenger settings
- .DATA
- Adobe Soundbooth
- Analysis Studio offline
- Apple iPhoto thumb segment
- Arena Wars game archive
- CoreFSIF database
- Generally
- SAM
- Sid Tune
- .DB
- Generally database
- ANSYS database
- Apple Safari cache database
- ArcView object
- Atari Jaguar debugger script
- Corel Paradox
- Smartware
- XTreeGold
- dBASE IV/dBFast configuration
- DIGIBooster module
- Microsoft Windows thumbnail database file format
- Mozilla (Netscape) client certificate
- Netscape security module
- Novell GroupWise address book
- S.T.A.L.K.E.R. X-Ray engine
- SmartWare Office pac
- SQL Anywhere
- Synopsys Design Compiler
- .DBF Common database
- AbacusLaw
- ACDSee thumbnail cache
- Act! Main
- Alpha Five table
- ArcView Shapefile attribute tableFLAMES Recorder output
JetForm FormFlow - Nova Logic game dialog binary
- Oracle 8.x tablespace
- Palm Zire photo
- Psion Series 3
- Visual FoxPro
- .DJVU DjVu image
- .DLL Dinamic Link Library
- .DMG
- Apple Mac OS X disk image
- Oracle binary format dump
- .DO 4oD Player playlist
- Apache Struts
- Digital Line Graph optional vector data
- ModelSim script
- .DOC Microsoft Word document
- .DOCX Microsoft Word extended document
- .DOWNLOAD Download
- .DWG
- AutoCAD Drawing
- BravoDRAFT Detailer