| mpack | Mpack Encoded MIME Message |
| mpb | Music Publisher Backup File |
| mpb | My Phone Explorer Data |
| mpc | ImageMagick Persistent Image Cache |
| mpcatalog | Phase One Media Pro Catalog |
| mpcb | ReliaSoft MPC Data |
| mpcd | MPViewer Data |
| mpd | Microsoft Project Database |
| mpd | Xilinx Microprocessor Peripheral Definition |
| mpdb | Windows Media Player 12 Database |
| mpdsp | eXtendable Wad Editor MPDSP Data |
| mperm | PLINK Max Permutation Test Report Data |
| mpex | Mass Properties Exchange Data |
| mpf | MADRIX Patch Data |
| mpgindex | Adobe Premiere Mpeg Index |
| mpgp | MacPGP Data |
| mph | COMSOL Multiphysics Data |
| mph | PhotoLine Morphing Data |
| mphbin | COMSOL Multiphysics Binary Data |
| mpi | Moldflow Plastics Insight Document |
| mpip | mpiP Data |
| mpk | GE LEDR Radio Software Image |
| mpk | Project64 Memory Pack |
| mpl | AVCHD Playlist Data |
| mpl | Maple Language File |
| mplog | Wireshark Micropross Mplog |
| mpls | Blu-ray Disc Movie Playlist |
| mpm | Blueice Multipass Data |
| mpm | Corel WordPerfect MathPlan Macro |
| mpp | MobileFrame Project Publisher Data |
