| gm0 | SAPS File |
| gm1 | Gerber Mechanical Layer 1 Data |
| gm1 | SAPS GMA Data |
| gm2 | Gerber Mechanical Layer 1 Data |
| gm2 | SAPS File |
| gm3 | Gerber Mechanical Layer 1 Data |
| gm3 | SAPS File |
| gm4 | SAPS GMA Data |
| gm9 | GodMode9 Script |
| gma | SAPS GMA Data |
| gmanifest | Google Desktop Gadget Manifest |
| gmap | Google Drive Map Data |
| gmax | Autodesk Gmax File |
| gmb | WinDS PRO Data |
| gmbck | Game Maker Background Image |
| gmbl | Vernier Logger Lite Data |
| gmc | CircuitCAM GMC Library |
| gmc | Global Mapper Catalog Data |
| gmd | Great Budget Model Data |
| gmd | GroupMail Message Data |
| gmd | Nintendo 3DS Game Dialog Data |
| gme | DexDrive Game Card Image |
| gme | Multi Game Memory Editor Main Game Data |
| gmf | GameExchange2 Material Data |
| gmf | GenStat Data |
| gmf | Geology Multi-File Data |
| gmf | Leadwerks 3D Model |
| gmf | SmartWare Pre 1.5 Graph Metafile |
| gml | Girder Plugin |
| gml | Graphlet GraphScript Data |
| gmmod | Game Maker 3D Model |
| gmp | Geomorph Tilemap Data |
| gmp | GroupMail Data |
| gmr | Schlafhorst Graphical Monitor Record |
| gmres | Game Maker Resource |
