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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Stylus is a preprocessor scripting language that is compiled into Cascading Style Sheets (CSS). It is designed to be a concise, flexib…
The .stylelintignore file is a configuration file used in conjunction with Stylelint, a powerful, modern linter that helps developers…
The SUO (Solution User Options) file is a proprietary binary file format used by Microsoft Visual Studio. It is designed to store user…
The `.svelte` file extension is used for Svelte component files. Svelte is a modern JavaScript compiler that transforms component code…
Scalable Vector Graphics (SVG) is an XML-based vector image format for two-dimensional graphics with support for interactivity and ani…
An SWC file is a package of pre-compiled Flash symbols and ActionScript code that allows developers to distribute libraries of compone…
The SWF (Shockwave Flash Object) file format is a proprietary format developed by Macromedia (later acquired by Adobe) primarily used…
An SWL file is a Shared Library file associated with Adobe Flash, which was originally developed by Macromedia. These files are design…
A Split Windows Imaging Format (SWM) file is a specific type of file used by Microsoft Windows deployment tools to handle large disk i…
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 .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 .swp file is a temporary swap file created by the Vim (Vi IMproved) text editor or its variants when a user begins editing a file. I…
The SXI file extension is primarily associated with StarOffice Impress, a presentation software component originally developed by Sun…
A .SYS file is a system file used by Microsoft Windows and other operating systems. These files typically contain device drivers, hard…
Stylus is a preprocessor scripting language that is compiled into Cascading Style Sheets (CSS). It is designed to be a concise, flexible, and expressive way to…
The .stylelintignore file is a configuration file used in conjunction with Stylelint, a powerful, modern linter that helps developers avoid errors and enforce…
The SUO (Solution User Options) file is a proprietary binary file format used by Microsoft Visual Studio. It is designed to store user-specific settings and pr…
The `.svelte` file extension is used for Svelte component files. Svelte is a modern JavaScript compiler that transforms component code into highly efficient va…
Scalable Vector Graphics (SVG) is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation. The SVG specifica…
An SWC file is a package of pre-compiled Flash symbols and ActionScript code that allows developers to distribute libraries of components. It is essentially a…
The SWF (Shockwave Flash Object) file format is a proprietary format developed by Macromedia (later acquired by Adobe) primarily used to store vector graphics…
An SWL file is a Shared Library file associated with Adobe Flash, which was originally developed by Macromedia. These files are designed to store various asset…
A Split Windows Imaging Format (SWM) file is a specific type of file used by Microsoft Windows deployment tools to handle large disk images. When a standard Wi…
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 .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 .swp file is a temporary swap file created by the Vim (Vi IMproved) text editor or its variants when a user begins editing a file. Its primary purpose is to…
The SXI file extension is primarily associated with StarOffice Impress, a presentation software component originally developed by Sun Microsystems as part of t…
A .SYS file is a system file used by Microsoft Windows and other operating systems. These files typically contain device drivers, hardware configurations, or c…
Everything you need to know about file extensions