| gs9 | Genecyst Emulator Saved State |
| gsa | FXpansion Geist2 Slice Information Data |
| gsa | GeneStudio Alignment Data |
| gsalb | GSAlbumer Album Data |
| gsb | FME Desktop Grid Shift Data |
| gsb | GAIN Script Binary Data |
| gsb | GeneSys 3 Battery Data |
| gsc | GeneStudio Data |
| gsc | IMail Server Web Messaging Data |
| gsd | GemStone Document |
| gsd | GSplit Piece File Data |
| gsdu | GameSave Manager Database Update |
| gse | GeneSys 3 Export File |
| gse | GSE 2.0 Macro Data |
| gsf | GameExchange2 Skeleton Data |
| gsf | GEMPAK Map File |
| gsf | Gwyddion Simple Field File |
| gsf | MODFLOW Grid Specification Data |
| gsf | Multi Game Memory Editor 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 | Graphtec ROBO Master Format Data |
| gsp | IMail Server Error Message |
| gsp | Tascam Gigastudio Performance Data |
| gss | Geometer Sketchpad Script |
| gss | Multi Game Memory Editor Snapshot Data |
| gss | Roboform Everywhere Data |
