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    IT Management 4 min read

    Letter G: Data Formats & File Extensions

    Find data formats and their file extensions starting with G.

    With literally thousands of data file formats employed by Windows and Window-based apps, keeping track of all the file extensions employed by your software applications and programs can be quite a challenge. Fortunately, Webopedia’s Complete List of Data File Formats and File Extensions makes it quick and easy to sift through thousands of file extensions and data file formats to find exactly what you need. You can peruse the full list or search for data formats and file extensions based on the letter they start with (G) from the table below.

    Data File Formats that Begin with the Letter ‘G’

    .g Data chart (APPLAUSE)
    .g3 Group 3 Fax document; Group 3 Fax
    .g3f Zetafax TIFF file (fine resolution)
    .g3n Zetafax TIFF file (normal resolution)
    .g8 Raw graphics (one byte per pixel) plane three (PicLab)
    .gab Global Address Book file
    .gal Corel Multimedia Manager Album
    .gam Saved Game file
    Fax (GammaFax)
    TADS 2.x Game file
    Baldur’s Gate Game file
    Animated E-mail
    .gat Gator file
    .gb Pagefox Bitmap Image file
    GameBoy ROM
    .gba Game Boy Advanced ROM
    GrabIt Batch files
    .gbc Game Boy COlor ROM
    .gbd Gator Banner file
    .gbl Global definitions (VAXTPU editor)
    .gbr GIMP Brush file
    Gerber Format file
    .gbx Gerber file
    .gc1 Lisp source code (Golden Common Lisp 1.1)
    .gc3 Lisp source code (Golden Common Lisp 3.1)
    .gcd Graphics
    .gcf Steam GCF File
    .gdb Interbase Database
    Group Mail file
    .gdf Dictionary file (GEOS)
    .gdr Bitmap Font file (SymbianOS)
    .ged Editor’s native file format (Arts & Letters)
    GEDCOM Family History file
    Graphic Environment Document
    Graphics editor file (EnerGraphics)
    Game Editor Project File
    .gem Vector graphics (GEM – Ventura Publisher)
    .gen Compiled template (dBASE Application Generator)
    Generated text (Ventura Publisher)
    Genius Family Tree
    .geo Geode (Geoworks)
    .gfb Compressed GIF image created by GIFBLAST (gifblast.exe)
    .gft Font (NeoPaint)
    .gfx Genigraphics Graphics Link Presentation
    Graphic format used by Allen Bradley SCADA Software (RSView Works)
    .gg Google Desktop Gadget file
    .gho Symantec Ghost Disk image file
    .ghs Lasertank High Scores
    Symantec Ghost Disk Image Span file
    .gib Chart (Graph-in-the-Box)
    .gid Windows Help index file
    .gif Graphics Interchange Format bitmap graphics (CompuShow)
    .gig Sound file
    .giw Presentation (Graph-in-the-Box for Windows)
    .gl Animation (GRASP GRAphical System for Presentation)
    .glm Datafile (Glim)
    .gls Datafile (Across)
    .gly Glossary (MS Word)
    .gmd Game Maker file format
    .gmf CGM graphics (APPLAUSE)
    .gml Geography Markup Language file
    .gmp Geomorph tile map (SPX)
    .gno Genopro Genealogy Document file
    .gnt In MF COBOL a compiled .cbl file
    .goc Goc source code file (Geoworks)
    .goh Goc header file (Geoworks)
    .gp Geode parameter file (Geoworks Glue)
    .gp3 CCITT Group 3 file
    GuitarPro 3
    .gp4 Guitar Pro version 4.06
    .gpd VISUAL EPR Input Data for PARAMS.EXE
    .gph Graph (Lotus 1-2-3/G)
    .gpk Omnigo program package
    .gpx GPS eXchange Format
    .gr2 Screen driver (Windows 3.x)
    .gra Datafile (SigmaPlot)
    .grb Ms-DOS Shell Monitor file (MS-DOS 5)
    .grd Gradebook Power file
    Map Projection Grid file
    .grf Micrografix Image file
    Graph file (Graph Plus – Charisma)
    .grl Matlab Graphic Format
    .grp Group file (Windows 3.x – Papyrus)
    Pictures group (PixBase)
    .grx File list (GetRight)
    .gry Raw GREY graphics
    .gs1 Presentation (GraphShow)
    .gsd Vector graphics (Professional Draw)
    GSplit file splitting utility (
    .gsm Raw GSM 6.10 Audio Stream
    Sound file
    US Robotics modem file
    .gsp Geometer’s Sketchpad Material file
    .gsw Worksheet (GraphShow)
    .gtp Gnome Desktop Theme file
    GuitarPro file
    .gts Genome Software Tempo Alarm Clock
    .gup Data (PopMail)
    .gwi Groupwise File
    .gwp Greetings WorkShop file
    .gxd General CADD Pro file
    GX-Reports file
    Jeol EX Spectrometer Data file
    .gxl Graphics library (Genus)
    .gxt GTA2 Game file
    .gym Sega Genesis Music Logged Format
    .gz Compressed file archive created by GZIP (GNU zip)
    .gzip Compressed file archive created by GZIP (GNU zip)

    Recommended Reading: An Introduction to Data File Formats and Their File Extensions

    This article was originally published on June 24, 2010