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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.

34
Indexed file extensions

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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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34 extensions
Letter: E Clear all
.E57

ASTM E57 3D Imaging Data Exchange Format

The E57 file format is a vendor-neutral, non-proprietary standard designed for the storage and exchange of three-dimensional imaging d…

Data
.EAR

Enterprise Archive

An EAR (Enterprise Archive) file is a deployment unit used in Java EE (Enterprise Edition) environments. It's essentially a JAR (Java…

Archive
.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
.EBS2

E-Prime 2 Compiled Script

The EBS2 file extension is associated with E-Prime 2.0, a comprehensive software suite developed by Psychology Software Tools (PST) fo…

Data
.EBS3

EBS3 Backup File

The 'ebs3' file extension is primarily associated with backup files created by certain backup software solutions, often related to sys…

Data
.EBZ

E-Book Systems Digital Book Package

The EBZ file extension is primarily associated with the FlipViewer software developed by E-Book Systems. It represents a compressed di…

Data
.ECW

Enhanced Compressed Wavelet

ECW (Enhanced Compressed Wavelet) is a proprietary geospatial raster image format developed by ERDAS (now part of Hexagon Geospatial)…

Image
.EDAT

PlayStation Encrypted Data File

An EDAT file is an encrypted data format primarily used by Sony Interactive Entertainment for its PlayStation ecosystem, specifically…

Data
.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
.EDL

Edit Decision List

An Edit Decision List (EDL) is a text-based file format used in the post-production process of film and video editing. It contains an…

Data
.EDOC

eDocBuilder Document

The .edoc file extension is associated with eDocBuilder, a document generation and automation software. These files typically contain…

Data
.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
.ELF

Executable and Linkable Format

The Executable and Linkable Format (ELF) is a common standard file format for executables, object code, shared libraries, and core dum…

Executable
.ELF (.ELF)

Executable and Linkable Format

The Executable and Linkable Format (ELF) is a common standard file format for executables, object code, shared libraries, and core dum…

Executable
.ELF (LINUX)

Executable and Linkable Format

The Executable and Linkable Format (ELF) is a common standard file format for executables, object code, shared libraries, and core dum…

Executable
.EML

Electronic Mail Format

An EML file is a standard file format used to store individual email messages. It was originally developed by Microsoft for Outlook Ex…

Data
.ENEX

Evernote Export File

The ENEX file format, which stands for Evernote Export, is a proprietary XML-based format developed by Evernote Corporation to facilit…

Data
.ENV

Environment Configuration File

An '.env' file is a plain text file that stores environment variables. These variables are key-value pairs that define the configurati…

Data
.EOT

Embedded OpenType

The EOT (Embedded OpenType) file format is a compact form of OpenType fonts designed by Microsoft for use as embedded fonts on web pag…

Data
.EPS

Encapsulated PostScript

Encapsulated PostScript (EPS) is a vector graphics file format frequently used for storing illustrations, logos, and other artwork. It…

Image
.EPUB

Electronic Publication (EPUB) ebook

The EPUB (Electronic Publication) format is a widely used, open-standard ebook format optimized for reflowable text. This means the te…

Data
.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
.ERDAS IMAGINE

ERDAS Imagine Image File

The .img file extension is primarily associated with ERDAS Imagine, a powerful geospatial data authoring system used for remote sensin…

Image
.E57

ASTM E57 3D Imaging Data Exchange Format

The E57 file format is a vendor-neutral, non-proprietary standard designed for the storage and exchange of three-dimensional imaging data, such as point clouds…

Data
.EAR

Enterprise Archive

An EAR (Enterprise Archive) file is a deployment unit used in Java EE (Enterprise Edition) environments. It's essentially a JAR (Java Archive) file with a spec…

Archive
.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 original Backus-Naur Form (B…

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 psychological and behavi…

Programming
.EBS2

E-Prime 2 Compiled Script

The EBS2 file extension is associated with E-Prime 2.0, a comprehensive software suite developed by Psychology Software Tools (PST) for the design and implemen…

Data
.EBS3

EBS3 Backup File

The 'ebs3' file extension is primarily associated with backup files created by certain backup software solutions, often related to systems utilizing Amazon Ela…

Data
.EBZ

E-Book Systems Digital Book Package

The EBZ file extension is primarily associated with the FlipViewer software developed by E-Book Systems. It represents a compressed digital book format used fo…

Data
.ECW

Enhanced Compressed Wavelet

ECW (Enhanced Compressed Wavelet) is a proprietary geospatial raster image format developed by ERDAS (now part of Hexagon Geospatial). It is designed for effic…

Image
.EDAT

PlayStation Encrypted Data File

An EDAT file is an encrypted data format primarily used by Sony Interactive Entertainment for its PlayStation ecosystem, specifically the PlayStation 3 (PS3)…

Data
.EDITORCONFIG

EditorConfig Configuration File

An EditorConfig file is a highly portable configuration file used to define and maintain consistent coding styles between different editors and IDEs working on…

Programming
.EDL

Edit Decision List

An Edit Decision List (EDL) is a text-based file format used in the post-production process of film and video editing. It contains an ordered list of reel and…

Data
.EDOC

eDocBuilder Document

The .edoc file extension is associated with eDocBuilder, a document generation and automation software. These files typically contain document templates, data…

Data
.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 in Node.js environments…

Programming
.ELF

Executable and Linkable Format

The Executable and Linkable Format (ELF) is a common standard file format for executables, object code, shared libraries, and core dumps on Unix-like operating…

Executable
.ELF (.ELF)

Executable and Linkable Format

The Executable and Linkable Format (ELF) is a common standard file format for executables, object code, shared libraries, and core dumps. It's a flexible and e…

Executable
.ELF (LINUX)

Executable and Linkable Format

The Executable and Linkable Format (ELF) is a common standard file format for executables, object code, shared libraries, and core dumps. It is used on many Un…

Executable
.EML

Electronic Mail Format

An EML file is a standard file format used to store individual email messages. It was originally developed by Microsoft for Outlook Express but has since evolv…

Data
.ENEX

Evernote Export File

The ENEX file format, which stands for Evernote Export, is a proprietary XML-based format developed by Evernote Corporation to facilitate the migration and bac…

Data
.ENV

Environment Configuration File

An '.env' file is a plain text file that stores environment variables. These variables are key-value pairs that define the configuration settings for an applic…

Data
.EOT

Embedded OpenType

The EOT (Embedded OpenType) file format is a compact form of OpenType fonts designed by Microsoft for use as embedded fonts on web pages. It allows web develop…

Data
.EPS

Encapsulated PostScript

Encapsulated PostScript (EPS) is a vector graphics file format frequently used for storing illustrations, logos, and other artwork. It's essentially a self-con…

Image
.EPUB

Electronic Publication (EPUB) ebook

The EPUB (Electronic Publication) format is a widely used, open-standard ebook format optimized for reflowable text. This means the text adapts to the screen s…

Data
.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 YAML files. When the ERB f…

Programming
.ERDAS IMAGINE

ERDAS Imagine Image File

The .img file extension is primarily associated with ERDAS Imagine, a powerful geospatial data authoring system used for remote sensing, image processing, and…

Image
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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.