mdl | Animation Master Model Data |
| ASTi Model Builder Model Data |
| Bentley MicroStation MDL Program |
| Cognos Exported Model Data |
| DB-MAIN Method Definition Data |
| IBM Rational Rose Model Data |
| Leadwerks 3D Model |
| Lectra Clothing Design Model |
| MapShots Model Data |
| MDL Molfile Data |
| Mighty Draw DOS Library |
| Moray 3D Model |
| Rapidform Model Data |
| STAR-CD v4 Model Data |
| Symbian OS MIME Type Library |
| Vensim Model |
mdl0 | Nintendo Wii Model Data |
mdm | BrainVoyager QX MDM Data |
| HLM Multivariate Data Matrix |
| OvenWATCH Dataset |
mdn | Microsoft Access Blank Database Template |
mdo | Microsoft IIS Metabase Backup |
mdp | GROMACS Molecular Dynamics Program |
mdpd | Trajexia Saved Parameters Data |
mdq | Database Interface Designer Database Query Data |
| Transformation Extender Database Definition Data |
mdr | ZX Spectrum Emulator Microdrive Cartridge Data |
mds | PLINK Multidimensional Scaling Report Data |
mdsx | MEGA Saved Session |
mdtext | Markdown Text Data |
mdtxt | Markdown Text Data |
mdu | D-Flow FM Model Definition Unstructured Data |
mdus | MessengerDiscovery Internal Data |
mdv | SmartWare Modem Definition Data |
mdw | Microsoft Access Workgroup Data |
mdx | dBASE IV Multiple Index |
| MDict Dictionary Data |
mdy | Sprint RSS iDEN Contact List Data |
me | Kodak EasyShare Thumbnail Cache |
| Multi-Edit Configuration |
mea | Marvelous Designer Tape Measure Data |
| Mastersizer 2000 Data |
| Meazure Data |
meb | Corel WordPerfect ME Bottom Overflow Data |
| PRO100 3D Interior Catalog Element |
mechdat | ANSYS Mechanical Exported Data |
mechdb | ANSYS Mechanical Database |
mecontact | Live Messenger Contacts Data |
med | A2B Player Purchase Data |
| Corel WordPerfect Macro Editor Data |
| MOBILedit Phone Image Data |
mediaget2 | MediaGet Data |
mef | Jaws PDF Server Exported Settings |
mefp | ExerciseRT Sample Data Record |
mefs | ExerciseRT Secondary Data Record |
meg | MEGA Data |
mega | Megacubo XML Metafile |
megamanager | Mega Manager Data |
meh | Adobe Acrobat Language Resource Data |
mem | BPM Studio Sampler Functions Data |
| E-Sword v8 Memory Verses Data |
| GreekToMe Memories Data |
| Medical Expense Manager Data |
| Medlin Payroll Software Additional Vendor Data |
| Mnemosyne Card Collection |
| Parallels Desktop Memory Dump |
| 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 |
men | Cabri II Plus Menu Data |
menc | Windows Mobile Encrypted File |
menu | macOS SystemUIServer MenuExtra Plugin |
| Steam Client GUI Menu Data |
| Zoom Player Menu Text Data |
menuskin | ObjectBar Menu Skin |
mep | Inor MePro Data |
meps | MEPS Data |
meq | Corel WordPerfect Macro Editor Print Queue |