| dsn | SPECCTRA Design File |
| dso | DAZ Studio Object |
| dspackage | Desktop Sidebar Package |
| dsq | Torque 3D Animation Data |
| dss | WRAP Simulation Results Output Data |
| dssc | DSSC Data |
| dst | Tajima Embroidery Data |
| dsta | Keysight PLTS State Data |
| dstf | DigitalDreams Secure Data Transfer File |
| dstl | Adobe Acrobat Distiller Data |
| dstv | Tekla Structures NC File |
| dstyle | Magic Display Style Data |
| dsv | DAZ Studio Vertex Map |
| dsvx | Microvellum Door Wizard File |
| dsz | ZSK Embroidery Data |
| ds_store | Mac OS X Folder Settings |
| dt | Proben1 Dataset |
| dt0 | DTED Level 0 Data |
| dt1 | DTED Level 1 Data |
| dt2 | DTED Level 2 Data |
| dt4 | BioSonics DT-X Data |
| dt5 | BK Backup Data |
| dt6 | BK Backup Data |
| dta | Chain Calculator Database |
| dta | EZ-Forms Data File |
| dtapart | DownThemAll! Partially Downloaded File |
| dtb2 | Timbuktu Pro DropIn Data |
| dtcp | Philips SuperAuthor DTCP Data |
| dte | Digital Terrain Elevation Data |
| dte | DoroTree Family Tree Data |
| dted | Digital Terrain Elevation Data |
| dtf | Symantec Q&A Database Data |
| dtfx | IBM i Access Data Transfer from IBM i |
| dthumb | Android Thumbnail Data |
| dtl | Weintek HMI Data Log File |