 
 MEDIUM
 MEDIUM |  |  | |
| Name | Parasolid Model Part File | AutoCAD Drawing | 
| File extension | .x_t, .x_b | .dwg | 
| Original software | AutoCAD | |
| Binary | ■ | |
| ASCII | ||
| Polygonal | ■ | |
| NURBS | ■ | ■ | 
| Solids | ■ | |
| Smoothing groups | ■ | ■ | 
| Textures, materials | ■ | |
| Developer/Owner | Siemens PLM Software | Autodesk | 
| Description | ||
| Specification | ||
| Format features | File geometric kernel Parasolid. Is used by CAD-systems such as NX, Solid Efge, SolidWorks | Despite the « two-dimensional » AutoCAD specialization, it is possible to create solid models. Autodesk itself for three-dimensional modeling software promotes Inventor | 
| Viewing software | Delcam Exchange 2012 (free) | DWG TrueView (free), DWGSee (free) |