| .3ds |
3D Studio Scene |
| .3dm |
Rhino 3D Model |
| .3dc |
RacerMate 3D Course File |
| .3mf |
3D Manufacturing File |
| .3df |
3D Format |
| .3da |
3D Assembly File |
| .3dx |
Rhino 3D Model File |
| .3dl |
iGO Landmark File |
| .3dxml |
Dassault Systemes 3D XML File |
| .3dmk |
123D Make Project File |
| .3dp |
3DMark2011 SE Project File |
| .3dw |
3D World Studio File |
| .3dmf |
QuickDraw 3D Metafile |
| .3d4 |
Stereo CAD-3D 2.0 Image File |
| .3dv |
3D VRML World |
| .3d |
Survex 3D Cavern File |
| .3d2 |
Stereo CAD-3D 2.0 Image File |
| .3don |
Scrutinize 3D Mesh File |
| .a2c |
Alice Object File |
| .amf |
Additive Manufacturing File |
| .act |
ADPCM Compressed Audio File |
| .ac |
Autoconf Script |
| .anm |
3D Animation File |
| .an8 |
Anim8or File |