 
 MEDIUM
 MEDIUM |  |  | |
| Name | NX Part/Assembly File | SolidWorks Part File | 
| File extension | .prt | .sldprt | 
| Original software | NX (Unigraphics) | SolidWorks | 
| Binary | ■ | ■ | 
| ASCII | ||
| Polygonal | ■ | ■ | 
| NURBS | ■ | ■ | 
| Solids | ■ | ■ | 
| Smoothing groups | ■ | ■ | 
| Textures, materials | ■ | ■ | 
| Developer/Owner | Siemens | Dassault Systemes | 
| Description | ||
| Specification | ||
| Format features | Part file CAD system SolidWorks | |
| Viewing software | Delcam Exchange 2012 (free) | SolidWorks Viewer 2011 (free), Delcam Exchange 2011 R2 (free), eDrawings (free) |