| dtf | ACDSee Thumbnail Database |
| Lotus Domino Server Temporary Data |
| Symantec Q&A Database Data |
| dtfx | IBM i Access Data Transfer from IBM i |
| dthumb | Android Thumbnail Data |
| dtl | Now Contact Detail Template |
| Pro/ENGINEER Detail Options Setup Data |
| Weintek HMI Data Log File |
| dtm | Bentley InRoads Digital Terrain Model |
| Gemcom Surpac Vision Data Repository |
| SmartWare Appointment Data |
| Softshare Delta Translation Map |
| Topocad Digital Terrain Model |
| dtn | TunnelCAD Input/Output File |
| dto | Digital Terrain Elevation Data |
| Directory Toolkit Output Data |
| Ditto Exported Data |
| dtp | Becker Pagelite Data |
| DMDX Binary DTP Data |
| ProComm Plus Program Patch |
| SecurDesk! Desktop Data |
| dtr | DATroniC Data Recording |
| DiagTransfer Chess Diagram |
| Swisslog Downtime Analyzer Report |
| dts | Directory Toolkit Script |
| Dynatrace AppMon Exported Session Data |
| Torque 3D Model Data |
| dtsearch | dtSearch Configuration Data |
| dtsearchtask | dtSearch Indexing Task Data |
| dtsf | Dynatrace AppMon Stored Session Data |
| dtswa | FantasyDVD Player Platinum Data |
| dtsx | Microsoft SQL Server Integration Services Package |
| dtt | Data Transfer To iSeries File |
| dttx | IBM i Access Data Transfer to IBM i |
| dtw | My Better Desktop Layout |
| dtxml | Across DisplayText XML Data |
| dty | Bentley Map Dictionary Data |
| dtyp | DTYPE Database |
| dtype | DTYPE Database |
| dtz | Simrad SP70 Scanning Sonar Compressed Data |
| dubaskin | Kingsoft Internet Security Skin |
| duc | Action Replay DS Max Save |
| ducf | DinkeyChange Update Code |
| duck | Cyberduck Bookmark |
| ducx-bp | Fabasoft app.ducx Business Processes Data |
| ducx-cu | Fabasoft app.ducx Customizations Data |
| ducx-om | Fabasoft app.ducx Object Model |
| ducx-os | Fabasoft app.ducx Organizational Structures Data |
| ducx-rs | Fabasoft app.ducx Resources Data |
| ducx-uc | Fabasoft app.ducx Use Cases Data |
| ducx-ui | Fabasoft app.ducx User Interface Data |
| ducx-xp | Fabasoft app.ducx Expressions Data |
| ducxproject | Fabasoft app.ducx Project |
| dud | DirectUpdate Data |
| duf | DSON User File |
| duh | Autodesk Storm and Sanitary Analysis DUH Data |
| duid | DHCP Unique Identifiers Data |
| dum | CODESYS Device User Management Data |
| QUANTA Dummy Atom File |
| dump | BreakPad Crash Log Data |
| dup | Jannersten Duplimate Data |
| Logic Pro Duplicate Audio Data |
| dup0 | Samsung Kies Duplicate Media Data |
| dup1 | Samsung Kies Duplicate Media Data |
| dup2 | Samsung Kies Duplicate Media Data |
| dupeguru | DupeGuru Duplicate List |
| dus | Readiris Font Dictionary |
| dut | Keysight PLTS Corrected Measurement Data |
| dva | dpsVelocity Split Audio Data |
| dvc | Dragon NaturallySpeaking Vocabulary |
| Lotus 1-2-3 DVC Data |
| dvcc | DaVinci Resolve Cache Data |
| dvdfab5 | DVDFab Data |
| dvdfab6 | DVDFab Data |
| dve | Video Toaster Digital Video Effect |
| dvfh | D-Link IP Camera Metadata |
| dvl | Active Safety System Communication Log |
| dvn | Kissock EModel Data Variables |
| dvo | Cook'n Cookbook Recipe |
| dvp | Autodesk AutoCAD Device Parameters Data |
