Parametric Technology Corporation File Extensions: A Complete Guide
| File | Description |
| .mcd |
MiniCAD Design File |
| .mcat |
Master Catalog file |
| .xmcd |
Mathcad Worksheet File |
| .xmcdz |
Mathcad Compressed Worksheet File |
| .3r |
Arbortext Advanced Print Publisher raster image |
| .thr |
Pro/ENGINEER data |
| .bmb |
Pro/ENGINEER temporary data |
| .pvz |
ProductView packaged structure and drawing |
| .mi |
CoCreate CAD drawing |
| .lay |
Pro/ENGINEER layout |
| .sdexp |
Creo Elements/Direct model |
| .254 |
Pro/Engineer versioned data |
| ._pd |
CADDS data |
| .wf4 |
Creo Parametric symbol data |
| .mfg |
Pro/Engineer manufacturing data |
| .fmr |
Pro/ENGINEER data |
| .wmc |
MathCAD backup of startup data |
| .bde |
Pro/ENGINEER temporary |
| .mech |
Pro/MECHANICA settings |
| .m_p |
Pro/ENGINEER temporary data |
| .bdi |
Pro/ENGINEER temporary data |
| .memb |
Pro/ENGINEER temporary file |
| .57 |
Creo Elements/Pro versioned data |
| .59 |
Creo Elements/Pro versioned data |