| .freecellsave-ms |
Microsoft FreeCell Saved Game |
| .ffu |
Full Flash Update Image File |
| .gadget |
Windows Gadget |
| .group |
Windows Contacts Group File |
| .gcw |
Microsoft Mathematics Worksheet |
| .gid |
Windows Help Global Index File |
| .gra |
Microsoft Graph File |
| .gau |
Flight Simulator Gauge File |
| .gthr |
Gather Log File |
| .grv |
Office Groove File |
| .grp |
StarCraft Graphics Group File |
| .gpd |
Generic Printer Description File |
| .gly |
Word Glossary File |
| .gwp |
Greetings Workshop Project File |
| .gmmp |
WCS Gamut Map Model Profile |
| .glox |
Microsoft Office SmartArt Graphics Layout File |
| .gcsx |
Microsoft Office SmartArt Color File |
| .gqsx |
Microsoft Office SmartArt Styles File |
| .gdfmakerproject |
GDF Editor Project File |
| .gta |
Microsoft Groove Tool Archive |
| .generictest |
Visual Studio Generic Test File |
| .grl |
Windows Update Status File |
| .hlp |
Windows Help File |
| .hdp |
HD Photo File |