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| Name | Initial Graphics Exchange Specification | Maya Project File | 
| File extension | .igs, .iges | .ma | 
| Original software | Autodesk Maya | |
| Binary | ||
| ASCII | ■ | ■ | 
| Polygonal | ■ | |
| NURBS | ■ | ■ | 
| Solids | ■ | |
| Smoothing groups | ■ | ■ | 
| Textures, materials | ■ | |
| Developer/Owner | U.S. National Bureau of Standards | Autodesk | 
| Description | ||
| Specification | Download PDF | |
| Format features | Universal open interchange NURBS-surfaces format. Along with STEP - one of the most popular | Using like .mb format (binary) | 
| Viewing software | Delcam Exchange 2012 (free), eDrawings (free) | Maya |