of 1 
| Extension | File Type Developer | File Category | File Type Description | Primary Software | Primary Software Developer |
|---|---|---|---|---|---|
| .M15 | Moving Picture Experts Group | Text Files | MPEG Video File | CyberLink PowerDVD | CyberLink |
| .MACWRITE | Apple | Text Files | MacWrite Text Document | MacWrite | Apple |
| .MAGNET | Vuze Inc. | Text Files | Magnet Link Text File | BitTorrent | BitTorrent |
| .MAN | Unknown Developer | Text Files | Unix Manual | LibreOffice | The Document Foundation |
| .MANIFEST | Microsoft Corporation | Text Files | Windows Application Manifest File | Microsoft Notepad | Microsoft Corporation |
| .MAP | id Software | Text Files | Quake Engine Map File | Valve Hammer Editor | Valve |
| .MDH | Balendu Sharma Dadhich | Text Files | Madhyam Document | Madhyam | Balendu Sharma Dadhich |
| .MDK | Microsoft Corporation | Text Files | Madoko Document File | Madoko | Microsoft Corporation |
| .MDOWN | John Gruber | Text Files | Markdown Markup Language Source Code | Microsoft Notepad | Microsoft Corporation |
| .ME | Unknown Developer | Text Files | Temporary Delete Me File | Unknown Software | Unknown Developer |
| .MELL | Mellel | Text Files | Mellel Word Processing File | Mellel | Mellel |
| .META4 | JDownloader Team | Text Files | Metalink 4.0 Data | Free Download Manager | Free Download Manager.ORG |
| .MIN | Okuma | Text Files | Okuma CNC Program File | Microsoft Notepad | Microsoft Corporation |
| .MKD | Malz++Kassner | Text Files | CAD 6 Drawing File | CAD6 Studio | Malz++Kassner |
| .MM4 | Microsoft Corporation | Text Files | Microsoft Windows Word Processing Format | Microsoft Windows | Microsoft Corporation |
| .MMO | Memory-Map | Text Files | Memory Map Overlay File | Memory-Map Navigator | Memory-Map |
| .MNL | Autodesk, Inc. | Text Files | AutoCAD Menu LISP File | Autodesk AutoCAD | Autodesk, Inc. |
| .MNT | Microsoft Corporation | Text Files | FoxPro Menu Memo | Microsoft Visual FoxPro | Microsoft Corporation |
| .MPL | Sony | Text Files | AVCHD Playlist File | CyberLink PowerDVD | CyberLink |
| .MPR | Open Source | Text Files | Bibexcel Data | BibExcel | Open Source |
| .MPV | Moving Picture Experts Group | Text Files | MPEG Elementary Stream Video File | CyberLink PowerDVD | CyberLink |
| .MRD | Interscape | Text Files | MathRevolt Infinity Document | Infinity | Interscape |
| .MSG | Microsoft Corporation | Text Files | Saved Email Message | Microsoft Outlook Express | Microsoft Corporation |
| .MSH | Martin Schweiger | Text Files | Orbiter 3D Mesh File | Orbiter | Martin Schweiger |
| .MSW | Corel | Text Files | Painter Color Mixer Swatches File | Corel Painter | Corel |
| .MTX | Yannick Delwiche | Text Files | MadTracker 2 Extension | MadTracker 2 | Yannick Delwiche |
| .MVW | McAfee, Inc. | Text Files | Saber LAN Log File | Saber LAN | McAfee, Inc. |
| .MW | Apple | Text Files | MacWrite Text Document | MacWrite | Apple |
| .MWD | Mariner Software | Text Files | Mariner Write Document | Mariner Write | Mariner Software |
| .MWP | IBM | Text Files | Lotus Word Pro SmartMaster File | IBM Lotus Word Pro | IBM |
Optional Offer for FileViewPro by Solvusoft | EULA | Privacy Policy | Terms | Uninstall
“FileViewPro eliminates the time and frustration of trying to track down a specific piece of software to open a specific file.” - Tucows
*Files that are not supported can be opened in binary format.
Copyright © 2010-2026 FileViewPro