| drc | DriveCrypt Container |
| drc | OMA DRM Rights Object WebXML |
| dre | DReport Exported Report |
| drf | Dr. Frame3D Data |
| drf | Dynojet Run Data |
| drg | AviSys Bird Watcher Database |
| drg | Carlson Survey Drawings Data |
| drg | Desktop Dyno2000 Car Design |
| dri | Excellion Drill File |
| dri | Microsoft SQL Server Data Replication Index |
| drill | DROPS Simulator Operation Data |
| drk | Race Studio 2 Downloaded Files |
| drl | Altium Binary Drill File |
| drl | Excellon Drill File |
| drl | PTC Creo Holemaking Parameter Data |
| drmmeta | AMS Additional DRM Data |
| dro | D-Robots Robot Data |
| droid | DROID Profile |
| drq | SDLX De-registration Request Data |
| drr | Altium Drill Report File |
| drs | Corel WordPerfect Driver Resource |
| drs | SPSS Raw Response Data |
| drscan | Data Rescue Scans Data |
| drt | DirectRT Styles Data |
| drt | EGSEING Direct Mode Data |
| drt | PSpice Custom Derating |
| dru | EAGLE Design Rules File |
| drv | AQUA Generic Distance Restraints Violations Data |
| drwprp | SolidWorks Drawing Properties Template |
| drwr | Drop Drawers Data |
| drx | Adobe Photoshop Tutorial Data |
| drx | BricsCAD Design Runtime Extension |
| drx | DaVinci Resolve eXchange File |
| dry | XAIRON Organizer Diary Data |
| drz | DReport Compressed Report |
