MEDIUM ![]() | ![]() | |
| Name | Creo Part File | Rhino OpenNURBS |
| File extension | .prt | .3dm |
| Original software | Creo (Pro/ENGINEER) | Rhinoceros 3D |
| Binary | ■ | ■ |
| ASCII | ||
| Polygonal | ■ | ■ |
| NURBS | ■ | ■ |
| Solids | ■ | ■ |
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | ■ |
| Developer/Owner | PTC | 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 | Creo Elements/View Express (free), Delcam Exchange 2012 (free) | Deep View (free) |