| meg | MEGA Data |
| mega | Megacubo XML Metafile |
| meh | Adobe Acrobat Language Resource Data |
| mem | BPM Studio Sampler Functions Data |
| mem | E-Sword v8 Memory Verses Data |
| mem | Medical Expense Manager Data |
| mem | Medlin Payroll Software Additional Vendor Data |
| mem | Parallels Desktop Memory Dump |
| mem | Virtual Game Station Memory Card |
| memb | PTC Creo Assembly Member Information Data |
| meme | MEME Motif Format Data |
| memo | S Memo Data |
| memx | E-Sword v9 Memory Verses Data |
| menc | Windows Mobile Encrypted File |
| menu | Zoom Player Menu Text Data |
| menuskin | ObjectBar Menu Skin |
| mep | Inor MePro Data |
| meps | MEPS Data |
| meq | Corel WordPerfect Macro Editor Print Queue |
| mes | SpectraMagic NX Data |
| mes | TrimeTool MES Output |
| mesa | MESA Model |
| mesh | Geomview Rectangularly-connected Mesh Data |
| mesh | Microsoft DirectX D3D Mesh Data |
| mesh | Rigs of Rods Mesh Data |
| meshdat | ANSYS Workbench Mesh Data |
| mess | Salome-Meca Exported Message Data |
| message | WebSTAR Directory Indexer Message |
| met | Corel WordPerfect ME Top Overflow Data |
| meta | Apache META File |
| meta | PLINK Meta-analysis Data |
| meta4 | Metalink Data |
| metadata | Acronis True Image Metadata |
| metadix | Apertium Metadix Dictionary Data |
| metalink | Metalink Data |
