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| Name | 3ds Max Scene File | Rhino OpenNURBS | 
| File extension | .max | .3dm | 
| Original software | Autodesk Max | Rhinoceros 3D | 
| Binary | ■ | ■ | 
| ASCII | ||
| Polygonal | ■ | ■ | 
| NURBS | ■ | ■ | 
| Solids | ■ | ■ | 
| Smoothing groups | ■ | ■ | 
| Textures, materials | ■ | ■ | 
| Developer/Owner | Autodesk | Robert McNeel & Associates | 
| Description | ||
| Specification | OpenNURBS | |
| Format features | The format of the first NURBS-Modeling software for Windows. Is currently open, so there are converters from/to lots of formats | |
| Viewing software | Max | Deep View (free) |