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| Name | Parasolid Model Part File | Object File Format |
| File extension | .x_t, .x_b | .off |
| Original software | ||
| Binary | ■ | ■ |
| ASCII | ||
| Polygonal | ■ | |
| NURBS | ■ | |
| Solids | ||
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | |
| Developer/Owner | Siemens PLM Software | |
| Description | ||
| Specification | ||
| Format features | File geometric kernel Parasolid. Is used by CAD-systems such as NX, Solid Efge, SolidWorks | Open storage format polygonal models |
| Viewing software | Delcam Exchange 2012 (free) | GLC_Player (free), MeshLab (free) |