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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.

7
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.
Browse categories Filter by documents, images, videos, archives, data, and more.
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7 extensions
Programming Letter: E Clear all
.EBNF

Extended Backus-Naur Form

Extended Backus-Naur Form (EBNF) is a formal meta-syntax notation used to express context-free grammars. It is an extension of the ori…

Programming
.EBS

E-Prime Compiled Script File

An EBS file is a compiled script file created by E-Prime, a comprehensive software suite used by researchers for designing and running…

Programming
.EDITORCONFIG

EditorConfig Configuration File

An EditorConfig file is a highly portable configuration file used to define and maintain consistent coding styles between different ed…

Programming
.EJS

Embedded JavaScript template

EJS (Embedded JavaScript) is a simple templating language that lets you generate HTML markup with plain JavaScript. It's commonly used…

Programming
.ERB

Embedded Ruby

ERB (Embedded Ruby) is a templating system for Ruby. It allows you to embed Ruby code within text documents, typically HTML, XML, or Y…

Programming
.ESLINTIGNORE

ESLint Ignore File

An eslintignore file is a plain text configuration file used by ESLint, a popular static code analysis tool for identifying and report…

Programming
.ESLINTRC

ESLint Configuration File

An ESLint configuration file, typically saved as a dotfile named .eslintrc, is used by ESLint, a widely adopted static code analysis t…

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.