MEDIUM ![]() | ![]() | |
| Name | Initial Graphics Exchange Specification | ACIS SAT Model File |
| File extension | .igs, .iges | .sat, .sab, .asat, .asab |
| Original software | ||
| Binary | ■ | |
| ASCII | ■ | ■ |
| Polygonal | ||
| NURBS | ■ | ■ |
| Solids | ■ | |
| Smoothing groups | ■ | ■ |
| Textures, materials | ||
| Developer/Owner | U.S. National Bureau of Standards | Spatial |
| Description | ||
| Specification | Download PDF | Download PDF |
| Format features | Universal open interchange NURBS-surfaces format. Along with STEP - one of the most popular | File geometric kernel ACIS. Is used by CAD-systems such as AutoCAD, Inventor |
| Viewing software | Delcam Exchange 2012 (free), eDrawings (free) | RADF Viewer (free), Delcam Exchange 2012 (free) |