Browse file extensions by category or letter. Learn what each file type is used for and find software that can open, view, edit, or convert it.
Use this directory to look up file formats, understand what files are used for, and find compatible applications for Windows, macOS, Linux, mobile, and online tools.
Refine your search with categories and letters
The G64 file extension represents a Commodore 64 GCR (Group Code Recording) disk image. Unlike the more common D64 format, which only…
GB18030 is a Chinese national standard and the official character set for the People's Republic of China. It is a variable-length char…
GB2312, officially known as GB2312-80, is a character set and encoding standard for Simplified Chinese characters, primarily used in t…
GBK (Guobiao Ku) is a character encoding standard for Simplified Chinese characters, designed as an extension of the GB2312-80 standar…
The GCD file format is primarily associated with Generic CADD, a popular computer-aided design (CAD) software package that was widely…
The GDB file extension is most commonly associated with the Esri File Geodatabase, a spatial data storage format developed by Esri for…
GeoJSON is a widely used open standard geospatial data interchange format that represents geographic features with their non-spatial a…
GeoPackage is an open, standards-based, platform-independent, portable, self-describing, and compact format for transferring geospatia…
GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF (Tagged Image File F…
The GGB file format is the native file format used by GeoGebra, an interactive geometry, algebra, statistics, and calculus application…
A GGT file is a GeoGebra Tool template file created and used by GeoGebra, an interactive mathematics software suite designed for scien…
glTF (GL Transmission Format) is a royalty-free, open standard for 3D scene and model transmission, developed by the Khronos Group. Th…
The .gliffy file extension is associated with Gliffy diagrams. Gliffy is a web-based diagramming application that allows users to crea…
Geography Markup Language (GML) is an XML grammar defined by the Open Geospatial Consortium (OGC) used to express geographical feature…
The .gnumeric file extension is associated with spreadsheet files created by Gnumeric, a free and open-source spreadsheet program. Gnu…
A GPG file is an encrypted or digitally signed file created using GNU Privacy Guard (GnuPG), which is a free, open-source implementati…
The GeoPackage (GPKG) file format is an open, non-proprietary, standards-based, and platform-independent container designed for geogra…
The GPO file extension is primarily associated with Group Policy Object backups created within the Microsoft Windows environment. Thes…
The GPP file extension is primarily associated with Group Policy Preferences, a feature introduced in Windows Server 2008 to extend th…
The GPX (GPS Exchange Format) file format is an XML schema designed for transferring GPS data between applications and web services. I…
A .GRD file is a grid data file format primarily associated with Golden Software's Surfer software. Surfer is a powerful contouring, g…
GRIB (GRIdded Binary) is a concise data format commonly used in meteorology to store and exchange gridded data, such as weather foreca…
The gshadow file format is a critical system configuration file used in Unix-like operating systems, most notably Linux, to store secu…
A GSP file is a document created by Geometer's Sketchpad, a leading interactive geometry software program used widely in mathematics e…
The G64 file extension represents a Commodore 64 GCR (Group Code Recording) disk image. Unlike the more common D64 format, which only stores the raw data of th…
GB18030 is a Chinese national standard and the official character set for the People's Republic of China. It is a variable-length character encoding that provi…
GB2312, officially known as GB2312-80, is a character set and encoding standard for Simplified Chinese characters, primarily used in the People's Republic of C…
GBK (Guobiao Ku) is a character encoding standard for Simplified Chinese characters, designed as an extension of the GB2312-80 standard. It was officially rele…
The GCD file format is primarily associated with Generic CADD, a popular computer-aided design (CAD) software package that was widely used in the 1980s and 199…
The GDB file extension is most commonly associated with the Esri File Geodatabase, a spatial data storage format developed by Esri for its ArcGIS suite of soft…
GeoJSON is a widely used open standard geospatial data interchange format that represents geographic features with their non-spatial attributes. It's based on…
GeoPackage is an open, standards-based, platform-independent, portable, self-describing, and compact format for transferring geospatial information. It is defi…
GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF (Tagged Image File Format) file. This means t…
The GGB file format is the native file format used by GeoGebra, an interactive geometry, algebra, statistics, and calculus application intended for learning an…
A GGT file is a GeoGebra Tool template file created and used by GeoGebra, an interactive mathematics software suite designed for science, technology, engineeri…
glTF (GL Transmission Format) is a royalty-free, open standard for 3D scene and model transmission, developed by the Khronos Group. The 'glb' file extension re…
The .gliffy file extension is associated with Gliffy diagrams. Gliffy is a web-based diagramming application that allows users to create various types of diagr…
Geography Markup Language (GML) is an XML grammar defined by the Open Geospatial Consortium (OGC) used to express geographical features. GML serves as a modeli…
The .gnumeric file extension is associated with spreadsheet files created by Gnumeric, a free and open-source spreadsheet program. Gnumeric is designed to be a…
A GPG file is an encrypted or digitally signed file created using GNU Privacy Guard (GnuPG), which is a free, open-source implementation of the OpenPGP standar…
The GeoPackage (GPKG) file format is an open, non-proprietary, standards-based, and platform-independent container designed for geographic information system (…
The GPO file extension is primarily associated with Group Policy Object backups created within the Microsoft Windows environment. These files are generated by…
The GPP file extension is primarily associated with Group Policy Preferences, a feature introduced in Windows Server 2008 to extend the capabilities of Group P…
The GPX (GPS Exchange Format) file format is an XML schema designed for transferring GPS data between applications and web services. It is an open and widely a…
A .GRD file is a grid data file format primarily associated with Golden Software's Surfer software. Surfer is a powerful contouring, gridding, and surface mapp…
GRIB (GRIdded Binary) is a concise data format commonly used in meteorology to store and exchange gridded data, such as weather forecasts and climate model out…
The gshadow file format is a critical system configuration file used in Unix-like operating systems, most notably Linux, to store secure group account informat…
A GSP file is a document created by Geometer's Sketchpad, a leading interactive geometry software program used widely in mathematics education. This file forma…
Everything you need to know about file extensions