| ghi | NCSA Mosaic Configuration |
| ghn | GH Setup Tool Settings |
| gil | GroupMail Field Mapping File |
| gng | GNG Configuration |
| gpa | GenePix Batch Settings File |
| gpd | Generic Printer Description |
| gps | GenePix Settings File |
| grc | GRASS GIS Manager Settings |
| grf | Minecraft Game Rules Data |
| growlticket | Growl Notification |
| gso | GoldenSection Notes Data |
| gtkrc | GTK+ Theme |
| gtp | Gimp Tool Preset |
| gvimrc | Vim Runtime Configuration |
| gwm | X11 Generic Window Manager Settings |
| h2p | Zenra 2 Presets |
| hcm | IBM HCM Configuration |
| hdp | HotDocs Publish Settings File |
| hdprg | FL Studio Hardcore Preset |
| hdt | Adobe Photoshop HDR Toning Preset |
| helpcfg | Adobe AIR Help Configuration |
| hfm | HFM.NET Configuration |
| hfmx | HFM.NET v0.90 Configuration |
| hfp | Harrys Filters Preset |
| hid | Sony Ericsson Bluetooth HID Configuration |
| hkc | HTML-Kit Auto Complete Shortcuts Data |
| hml | HostMonitor TestList Data |
| hnh | HTTP Net Header Configuration |
| hrt | Heart-Profit Configuration |
| ht | HyperTerminal Settings |
