DOC-WordStar-document
DOCXENX-egis-Encrypted-Word-Open-XML-DOCX-File-HiTRUST-Inc
DOCX-Microsoft-Office-Word-2007-Document
DOCX-Microsoft-Word-2007-XML-based-document-file-format
DOCXML-Word-View-XML-Document
DOCX-Word-Microsoft-Office-Open-XML-Format-Document-Microsoft-Corporation
DOCX-Word-Open-XML-Document
DOCZIP-dockzip-format-Header
DO-DigitalOutrage-Hosting-Control-Panel-Info
DOE-Arena-Model-File-Rockwell-Automation-Inc
DOF-Delphi-Option-File-Borland-Software-Corporation
DOF-Delphi-Options-File-Header
DOF-Delphi-project-options-file
DOF-DOSBox-movie-capture-format
DOF-Racer-3D-geometry-file
DOF-WinTidy-File
DOG-Screen-Saver-file-Laughing-Dog-Screen-Saver
DOH-Dependency-Information-file-Geoworks
DOI-Actuate-Query-Output-Actuate-Corporation
DO-Java-Servlet-file
DOK-Document-file
DOK-Dokument-often-ASCII-Text
DOK-German-or-Dutch-Text
DOL-D-PAS-Portfolio-Manager-Flexible-Benchmarking-Analysis-File
DOL-Gamecube-Executable-File
DOL-GameCube-Executable-File-Nintendo
DOL-Nintendo-Wii-executable-file
DOLPHINVIEW-Dolphin-Folder-View-Settings-File
DO-Member-Clicks-File
DO-MicroSim-PCBoard-File-With-Autorouting-Control-Information
DO-ModelSim-file
DO-ModelSim-script-file
DO-Modem-Bitware-Fax-disk2-file
DOM-Unknown-or-unassigned-file-extension
DONE-Cygwin-post-install-file-format
DON-Log-file
DON-Textur-Editor-File
DON-Unknown-Apple-II-File
DOO-Atari-Doodle-Atari
DOO-Image-Doodle
DOO-Vibrants-music-file
DOP-Digital-Orchestrator-File
DOQ-Digital-Orthophoto-Quadrangle
DOQQ-Digital-Orthophoto-Quarter-Quadrangle
DOR-ArchiCAD-Geometric-Description-Language-file
DORE-Dore-raster-file-format
DORE-Dore-Raster-File-Format-Steve-Hollasch
DOR-Resident-Evil-1-game-file
D-OS-2-Planner-data
D-OS-2-Planner-Data-File
TechTarget file types