| gsf | GEMPAK Map File |
| gsf | Gwyddion Simple Field File |
| gsf | MODFLOW Grid Specification Data |
| gsf | z-Tree GameSafe Data |
| gsi | GeneSys 3 Remote Administration Data |
| gsite | Google Drive Site Data |
| gsk | GSAK Macro File |
| gsl | GoodSync Job List |
| gslib | Geostatistical Software Library Data |
| gsm | ArchiCAD Library Object |
| gsm | GoldSim Model |
| gsms | GameSave Manager Settings Backup |
| gsp | GoldSim Input Model |
| gsp | IMail Server Error Message |
| gsp | Tascam Gigastudio Performance Data |
| gss | Geometer Sketchpad Script |
| gss | Roboform Everywhere Data |
| gst | GAIN Script Text Data |
| gst | Giza Specifier Template |
| gstat | CSD GSTAT Chemical Modeller Input Data |
| gstore | GMailStore Data |
| gsv | Gameshark SP Save File |
| gsvr | GhostScript Data |
| gsx | Genecyst Emulator Saved State |
| gsx | Gens Saved State |
| gsym | Rocket D3 Global Symbol Data |
| gt | ETCBC Graphical Text Data |
| gt3x | ActiGraph wGT3X-BT Data |
| gt6 | Topcon Link GTS-6 Raw Data |
| gt7 | Topcon Link GTS-7 Raw Data |
