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
Extensible Application Markup Language (XAML) is a declarative XML-based language developed by Microsoft that is used for initializing…
XHTML (eXtensible HyperText Markup Language) is a markup language that is a reformulation of HTML 4 as an XML application. This means…
A XIB file is an XML-based file format used by Apple's Interface Builder, which is integrated into the Xcode development environment…
The 'maven' file, commonly referred to as the pom.xml (Project Object Model) file, is the fundamental unit of work in the Apache Maven…
XSLT (Extensible Stylesheet Language Transformations) is a language for transforming XML documents into other XML documents, or other…
Extensible Application Markup Language (XAML) is a declarative XML-based language developed by Microsoft that is used for initializing structured values and ob…
XHTML (eXtensible HyperText Markup Language) is a markup language that is a reformulation of HTML 4 as an XML application. This means that XHTML documents must…
A XIB file is an XML-based file format used by Apple's Interface Builder, which is integrated into the Xcode development environment, to design user interfaces…
The 'maven' file, commonly referred to as the pom.xml (Project Object Model) file, is the fundamental unit of work in the Apache Maven build automation tool. I…
XSLT (Extensible Stylesheet Language Transformations) is a language for transforming XML documents into other XML documents, or other formats such as HTML, pla…
Everything you need to know about file extensions