| dam | DeltaMaster Analysis Model |
| dan | D-MAS Analysis Data |
| dap | Download Accelerator Plus Partial Data |
| daq | Data Acquisition Toolbox File |
| dartclip | Dartfish inTheAction Clip Metadata |
| das | Autodesk Simulation Mechanical DDAM Stress Output |
| das | DeltaMaster Analysis Session Data |
| das | Download Accelerator Plus File List |
| dash | Dashlane Profile |
| dashboard | IR Prognosis WebUI Dashboard |
| dat | Affymetrix Image Data File |
| dat | Celestia Binary Database |
| dat | DataFlex Database File |
| dat | eM Client Database |
| dat | General Data File |
| dat | Inno Setup Uninstall Data |
| dat | Nero BackItUp Drive Image |
| dat | Radiance Data File |
| dat | Shareaza Thumbnail Data |
| dat | SPOT Satellite Image Format Data |
| dat | SVAL Frequency-time Spectrogram Data |
| dat | SWAT Database |
| dat | Tecplot ASCII Data |
| dat | Treepad Database |
| dat | Windows Registry Hive Data |
| dat-shm | eM Client SHM Data |
| dat-wal | eM Client WAL Data |
| dat2 | XYplorer Thumbnail Cache |
| data | Adobe Soundbooth Audio Data |
| data | Analysis Studio Data |
| data | Apple Photos Data |
| data | CoreFSIF Database |
| data | General Data File |
| data | NASA VIRV Instruments Status |
| database | Serato DJ Database |
