| Abbreviation | Definition |
|---|---|
| MPC | MicroSoft Project Calendar file |
| MPD | Monadic predicates (ABC programming language) |
| MPE | Movie (Moving Pictures Expert Group format) |
| MPEG | Movie - Motion Pictures Experts Group format |
| MPEG | MPEG (Motion Picture Experts Group) File Allocation Table |
| MPEG4 | Motion Picture Experts Group (File Allocation Table) 4-layer |
| MPG | Movie (Moving Pictures Expert Group format) |
| MPM | WordPerfect Library MathPlan macro file |
| MPNT | Apple Macintosh MacPaint file Bitmap graphics |
| MPP | Project file (MS Project) |
| MPR | Generated executable menu file (FoxPro) |
| MPT | Bitmap graphics (Multipage TIFF) |
| MPV | Microsoft Project View file |
| MPX | Compiled executable menu file (FoxPro) |
| MQO | Metasequoia 3-dimensional model file |
| MQO | Metasequoia file |
| MRB | Microsoft C/C++ Multiple Resolution Bitmap graphics |
| MRC | Bibliographic data (Machine-Readable Cataloging records) |
| MRK | CSI markup file (CAD format) |
| MRK | Windows User Benchmark (Windows 95) |