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| Name | SketchUp Document | Cinema 4D |
| File extension | .skp | .c4d |
| Original software | SketchUp | Cinema 4D |
| Binary | ■ | ■ |
| ASCII | ||
| Polygonal | ■ | ■ |
| NURBS | ||
| Solids | ||
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | ■ |
| Developer/Owner | Trimble | Maxon |
| Description | ||
| Specification | ||
| Format features | ||
| Viewing software | SketchUp Viewer (free) | Cinema 4D |