| mdf | Microsoft SQL Server Database |
| mdf | RSView Machine Edition Data Log Model |
| mdf | SDL Trados Studio Translation Memory Data |
| mdg | Enterprise Architect Data |
| mdg | myPM Merge Data |
| mdif | EEsof Model MDIF File |
| mdimporter | Mac OS X Spotlight Importer Settings Data |
| mdinfo | iPhone Backup Information Data |
| mdist | PLINK Genomic Distance Proportion Matrix Data |
| mdk | Astra Schedule Schedule Data |
| mdl | Animation Master Model Data |
| mdl | ASTi Model Builder Model Data |
| mdl | Bentley MicroStation MDL Program |
| mdl | Cognos Exported Model Data |
| mdl | DB-MAIN Method Definition Data |
| mdl | IBM Rational Rose Model Data |
| mdl | Leadwerks 3D Model |
| mdl | Lectra Clothing Design Model |
| mdl | MapShots Model Data |
| mdl | MDL Molfile Data |
| mdl | Mighty Draw DOS Library |
| mdl | Moray 3D Model |
| mdl | Rapidform Model Data |
| mdl | STAR-CD v4 Model Data |
| mdl | Symbian OS MIME Type Library |
| mdl | Vensim Model |
| mdl0 | Nintendo Wii Model Data |
| mdm | BrainVoyager QX MDM Data |
| mdm | HLM Multivariate Data Matrix |
| mdm | OvenWATCH Dataset |
