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| Name | Drawing Exchange Format | HOOPS Stream Format |
| File extension | .dxf | .hsf |
| Original software | AutoCAD | |
| Binary | ■ | |
| ASCII | ■ | |
| Polygonal | ■ | |
| NURBS | ■ | |
| Solids | ■ | |
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | ■ |
| Developer/Owner | Autodesk | Tech Soft 3D |
| Description | ||
| Specification | Open HSF doc | |
| Format features | Despite the « two-dimensional » AutoCAD specialization, it is possible to create solid models. Autodesk itself for three-dimensional modeling software promotes Inventor | One attempt to create « universal » 3D-format for publishing CAD-models. To date, work on improving it stopped |
| Viewing software | DWG TrueView (free), DWGSee (free) | Hoops Publish |