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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A file with the SWN extension is a temporary swap file created by the Vim (Vi IMproved) text editor. When a user opens a file for edit…
A file with the .groovy extension contains source code written in the Groovy programming language, which is an object-oriented, dynami…
A .helmignore file is a specialized configuration file used by Helm, the package manager for Kubernetes, to define which files and dir…
An SPS file is a syntax file used by IBM SPSS Statistics, a widely used software suite for the analysis of statistical data. These fil…
Augmented Backus-Naur Form (ABNF) is a formal grammar notation used extensively in Internet engineering to define the syntax of protoc…
An FSPROJ.USER file is a user-specific configuration file used by Microsoft Visual Studio and MSBuild for F# (F Sharp) programming pro…
A .swo file is a temporary swap file created by the Vim (Vi Improved) text editor. When a user opens a file in Vim, the editor creates…
A .prettierrc file is a configuration file used by Prettier, an opinionated code formatter widely adopted in modern web development. T…
An eslintignore file is a plain text configuration file used by ESLint, a popular static code analysis tool for identifying and report…
A .gcloudignore file is a configuration file used by the Google Cloud Command Line Interface (gcloud CLI) to specify which local files…
The YPP file extension is primarily associated with YPP (Yet Another Pre-Processor), a specialized tool used in software development a…
An ESLint configuration file, typically saved as a dotfile named .eslintrc, is used by ESLint, a widely adopted static code analysis t…
A .cvsignore file is a configuration file used by the Concurrent Versions System (CVS), an older revision control system. It is used t…
A .clang-format file is a configuration file used by ClangFormat, a highly popular tool developed under the LLVM project designed to a…
A .lib file is a static library used primarily in Windows development environments, such as Microsoft Visual C++. It acts as a contain…
A file with the SWN extension is a temporary swap file created by the Vim (Vi IMproved) text editor. When a user opens a file for editing in Vim, the applicati…
A file with the .groovy extension contains source code written in the Groovy programming language, which is an object-oriented, dynamic language designed for t…
A .helmignore file is a specialized configuration file used by Helm, the package manager for Kubernetes, to define which files and directories should be exclud…
An SPS file is a syntax file used by IBM SPSS Statistics, a widely used software suite for the analysis of statistical data. These files contain command-line i…
Augmented Backus-Naur Form (ABNF) is a formal grammar notation used extensively in Internet engineering to define the syntax of protocols and data formats. Sta…
An FSPROJ.USER file is a user-specific configuration file used by Microsoft Visual Studio and MSBuild for F# (F Sharp) programming projects. It is an XML-forma…
A .swo file is a temporary swap file created by the Vim (Vi Improved) text editor. When a user opens a file in Vim, the editor creates a swap file to store cha…
A .prettierrc file is a configuration file used by Prettier, an opinionated code formatter widely adopted in modern web development. This file is typically pla…
An eslintignore file is a plain text configuration file used by ESLint, a popular static code analysis tool for identifying and reporting on patterns found in…
A .gcloudignore file is a configuration file used by the Google Cloud Command Line Interface (gcloud CLI) to specify which local files and directories should b…
The YPP file extension is primarily associated with YPP (Yet Another Pre-Processor), a specialized tool used in software development and programming environmen…
An ESLint configuration file, typically saved as a dotfile named .eslintrc, is used by ESLint, a widely adopted static code analysis tool for JavaScript and Ty…
A .cvsignore file is a configuration file used by the Concurrent Versions System (CVS), an older revision control system. It is used to specify files and direc…
A .clang-format file is a configuration file used by ClangFormat, a highly popular tool developed under the LLVM project designed to automatically format sourc…
A .lib file is a static library used primarily in Windows development environments, such as Microsoft Visual C++. It acts as a container for a collection of co…
Everything you need to know about file extensions