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.
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An ADM file is a Group Policy Administrative Template used by Microsoft Windows operating systems to define registry-based policy sett…
The WEM (Wwise Encoded Media) file format is a proprietary audio format developed by Audiokinetic for use with their Wwise (Wave Works…
The HPS file extension is primarily associated with the HPL Engine, a proprietary game engine developed by Frictional Games. These fil…
The BCSTM file format, which stands for Binary Cafe Stream, is a proprietary audio file format developed by Nintendo. It is primarily…
The GeoPackage (GPKG) file format is an open, non-proprietary, standards-based, and platform-independent container designed for geogra…
An FSB (FMOD Sample Bank) file is a proprietary audio container format developed by Firelight Technologies for use with their FMOD aud…
A DOCM file is a macro-enabled document created by Microsoft Word, the widely used word processing application. Introduced with the re…
The ENEX file format, which stands for Evernote Export, is a proprietary XML-based format developed by Evernote Corporation to facilit…
A file with the .state extension is typically a Saved State file used by various software applications, most notably video game emulat…
UTF-16 (16-bit Unicode Transformation Format) is a character encoding capable of encoding all 1,112,064 valid character code points of…
An MSBuild Targets file, bearing the .targets extension, is an XML-based configuration file used by the Microsoft Build Engine (MSBuil…
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…
The BFSTM (Binary File Stream) format is a proprietary audio container format developed by Nintendo, primarily used in games for the W…
The .mli file extension is used for interface files in the OCaml programming language. OCaml is a functional, imperative, and object-o…
Big5 is a character encoding standard used for Traditional Chinese characters, predominantly in Taiwan, Hong Kong, and Macau. Develope…
An XLTM file is a macro-enabled template created by Microsoft Excel, the industry-standard spreadsheet application. Introduced with th…
The QUAL file format is a text-based format used in bioinformatics to store quality scores for DNA sequences, typically complementing…
The FOF file extension, standing for 'File of Files' or 'Folders of Files,' is primarily used as a manifest or index file in specializ…
A .props file is an XML-based configuration file used primarily by Microsoft Visual Studio and the MSBuild engine. These files are des…
The PCAP (Packet Capture) file format is a standardized application programming interface and file format used for capturing and recor…
The z03 file extension is part of a multi-volume or split archive created by compression utilities such as WinZip, 7-Zip, or WinRAR. W…
The BFWAV file format is a proprietary audio container format primarily associated with Nintendo's internal audio engine, specifically…
The VMSD file is a metadata file used by VMware virtualization software, specifically associated with VMware Workstation, VMware Playe…
An ADM file is a Group Policy Administrative Template used by Microsoft Windows operating systems to define registry-based policy settings. These files contain…
The WEM (Wwise Encoded Media) file format is a proprietary audio format developed by Audiokinetic for use with their Wwise (Wave Works Interactive Sound Engine…
The HPS file extension is primarily associated with the HPL Engine, a proprietary game engine developed by Frictional Games. These files contain scripts writte…
The BCSTM file format, which stands for Binary Cafe Stream, is a proprietary audio file format developed by Nintendo. It is primarily used in games developed f…
The GeoPackage (GPKG) file format is an open, non-proprietary, standards-based, and platform-independent container designed for geographic information system (…
An FSB (FMOD Sample Bank) file is a proprietary audio container format developed by Firelight Technologies for use with their FMOD audio engine. It is widely u…
A DOCM file is a macro-enabled document created by Microsoft Word, the widely used word processing application. Introduced with the release of Microsoft Office…
The ENEX file format, which stands for Evernote Export, is a proprietary XML-based format developed by Evernote Corporation to facilitate the migration and bac…
A file with the .state extension is typically a Saved State file used by various software applications, most notably video game emulators (such as PCSX2, Retro…
UTF-16 (16-bit Unicode Transformation Format) is a character encoding capable of encoding all 1,112,064 valid character code points of Unicode. It uses one or…
An MSBuild Targets file, bearing the .targets extension, is an XML-based configuration file used by the Microsoft Build Engine (MSBuild), which is the build pl…
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…
The BFSTM (Binary File Stream) format is a proprietary audio container format developed by Nintendo, primarily used in games for the Wii U and Nintendo 3DS con…
The .mli file extension is used for interface files in the OCaml programming language. OCaml is a functional, imperative, and object-oriented language that uti…
Big5 is a character encoding standard used for Traditional Chinese characters, predominantly in Taiwan, Hong Kong, and Macau. Developed in the mid-1980s by a c…
An XLTM file is a macro-enabled template created by Microsoft Excel, the industry-standard spreadsheet application. Introduced with the Office Open XML (OOXML)…
The QUAL file format is a text-based format used in bioinformatics to store quality scores for DNA sequences, typically complementing a corresponding FASTA fil…
The FOF file extension, standing for 'File of Files' or 'Folders of Files,' is primarily used as a manifest or index file in specialized data processing enviro…
A .props file is an XML-based configuration file used primarily by Microsoft Visual Studio and the MSBuild engine. These files are designed to store project-le…
The PCAP (Packet Capture) file format is a standardized application programming interface and file format used for capturing and recording network traffic. It…
The z03 file extension is part of a multi-volume or split archive created by compression utilities such as WinZip, 7-Zip, or WinRAR. When a large collection of…
The BFWAV file format is a proprietary audio container format primarily associated with Nintendo's internal audio engine, specifically utilized in games develo…
The VMSD file is a metadata file used by VMware virtualization software, specifically associated with VMware Workstation, VMware Player, and VMware ESXi. When…
Everything you need to know about file extensions