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File Extensions

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.

6
Indexed file extensions

Find the right information for any file extension

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.

Search by extension Enter extensions like PDF, APK, DAT, HEIC, ZIP, or DOCX.
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6 extensions
Programming Letter: L Clear all
.LIB

Static Library

A .lib file is a static library used primarily in Windows development environments, such as Microsoft Visual C++. It acts as a contain…

Programming
.LIB (STATIC LIBRARY)

Static Library

A `.lib` file is a static library file format, primarily used on Windows systems. It contains pre-compiled code, routines, functions…

Programming
.LIQUID

Liquid Template

Liquid is a template engine created by Shopify and written in Ruby. It is used to build dynamic web pages and emails by separating the…

Programming
.LISP

Lisp Source Code File

The .lisp file extension is used for source code files written in the Lisp programming language, which is one of the oldest high-level…

Programming
.LSP

Lisp Source Code File

An LSP file is a source code file written in the Lisp programming language, which is one of the oldest and most influential high-level…

Programming
.LUA

Lua Script File

A .lua file is a source code file written in Lua, a lightweight, high-level, multi-paradigm programming language designed primarily fo…

Programming

Frequently Asked Questions

Everything you need to know about file extensions

You can search by entering a file extension directly in the search bar or browse the directory by category or alphabetical index.

Each listing provides a definition of the file extension, common use cases, compatible software, supported platforms, and related or alternative formats.

The database is updated regularly to reflect new file extensions, changes in software compatibility, and evolving file format standards.