| dpatch | Dpatch Patch Data |
| dpb | DataPilot Data |
| dpcache | Apple iPhoto Desktop Photos Cache |
| dpe | DPwinEHE Calculation |
| dpf | COMPRESS Drafter Data |
| dpf | F-Secure Default Policy File |
| dph | BAT Detector Plane Histogram Data |
| dpi | Adlib Express Document Processing Information |
| dply | RootCause Deploy Data |
| dpm | ANSYS Fluent DPM Output Data |
| dpr | ASReml Double Precision Binary Data |
| dprec | Drawpile Record Data |
| dprecz | Drawpile Compressed Record Data |
| dprep | Microsoft Azure Dataflow Preparation Data |
| dpsml | PSML Dynamic Page Definition |
| dptxt | Drawpile Text Record Data |
| dpu | Advanced DHTML Popup Package |
| dpv | Siemens NX Drafting Standard |
| dpz | IBM SPSS Deployment Package |
| dqa | Daqarta Data File |
| dql | DataEase Database |
| dqr | FIU-IND Data Quality Report |
| dr | OMA DRM Rights Object XML |
| dra | Dragon Recorded Audio |
| drag | EdGCM Data |
| drb | Dr. Beam Pro Data |
| drc | AQUA Generic Distance Restraints Counts Data |
| drc | OMA DRM Rights Object WebXML |
| dre | DReport Exported Report |
| drg | Carlson Survey Drawings Data |
| dri | Microsoft SQL Server Data Replication Index |
| dri | Excellion Drill File |
| drill | DROPS Simulator Operation Data |
| drk | Race Studio 2 Downloaded Files |
| drl | Excellon Drill File |