| mnf | MSC Adams Model Neutral Data |
| mng | Corel Paint Shop Pro Animation |
| mni | Cerious Mandelbrot Image |
| mnit | SlimBrowser MNIT Data |
| mnk | My Notes Keeper Notebook |
| mnm | Autodesk Character Studio Marker Name |
| mnn | Microsoft Money Cache Data |
| mnr | Autodesk AutoCAD Menu Resource |
| mns | Autodesk AutoCAD Menu Source |
| mnu | Adobe Photoshop Menu Customization Data |
| mnu | Autodesk AutoCAD Menu Definition |
| mnu | General CADD Menu |
| mnu | SmartWare Menu Keywords Data |
| mnu | Total Commander Menu Language Data |
| mnx | Autodesk AutoCAD Compiled Menu Data |
| mo | Dymola Simulation Data |
| mo | Modelica Model |
| mo1 | Magnavox Odyssey 1 Emulator ROM Image |
| moa | MOA Data File |
| mob | MobTV P2P File |
| moba | MobaXterm Data |
| moc3 | Live2D Cubism 3 Model Data |
| mod | ArchiCAD Module File |
| mod | CATIA Model Data |
| mod | EPOC Model Definitions Data |
| mod | GNU GRUB Module |
| mod | PeachText Database |
| mod | SVAL Modal Data |
| mode | Coda Syntax Mode |
| model | CATIA Model Data |
