| Расширение | Форматы | К-ство форматов |
|---|---|---|
| gadget | Windows Gadget | 1 |
| gdb | Borland InterBase Database File | 1 |
| gho | Norton Ghost Backup Image File | 1 |
| gif | Graphics interchange file format | 1 |
| gp3 | Guitar Pro 3 project file | 1 |
| gp4 | Guitar Pro 4 Tablature, CCITT Group 4 Fax File | 2 |
| gp5 | Guitar Pro 5 Tablature File | 1 |
| gpx | GPS Exchange File, Guitar Pro 6 Document | 2 |
| graphml | GraphML File | 1 |
| grb | GRIB Meteorological Data File, HP-48 GROB bitmap image file, MS-DOS Shell Monitor file, GRBackPro backup file | 4 |
| grp | Windows Program Group file, SmarterMail Group File, StarCraft graphics group file | 3 |
| gsm | Global System for Mobile Audio File, MapViewer Project File, ArchiCAD library object file | 3 |
| gz | GZIP compressed archive file | 1 |