HIGH  |  | |
| Name | Object File Format | Initial Graphics Exchange Specification |
| File extension | .off | .igs, .iges |
| Original software | ||
| Binary | ■ | |
| ASCII | ■ | |
| Polygonal | ■ | |
| NURBS | ■ | |
| Solids | ||
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | |
| Developer/Owner | U.S. National Bureau of Standards | |
| Description | ||
| Specification | Download PDF | |
| Format features | Open storage format polygonal models | Universal open interchange NURBS-surfaces format. Along with STEP - one of the most popular |
| Viewing software | GLC_Player (free), MeshLab (free) | Delcam Exchange 2012 (free), eDrawings (free) |
