A comprehensive library of file extensions with descriptions and uses across various file types.
Microsoft Word document format, widely used for word processing.
Updated Microsoft Word format, XML-based for compatibility and smaller file sizes.
OpenDocument Text, used in LibreOffice and OpenOffice, open standard for text documents.
Portable Document Format, supports images and text, widely used for document sharing.
Rich Text Format, supports basic text formatting, widely compatible.
Plain text file format, used for unformatted text, supported universally.
Apple Pages document format, used for documents created on Mac OS.
Microsoft Excel spreadsheet, used for data management and analysis.
Excel format based on XML, more compatible and efficient than .xls.
OpenDocument Spreadsheet, used in LibreOffice and OpenOffice.
Comma-separated values file, used to store tabular data, compatible with spreadsheets.
PowerPoint Presentation, used for slideshows and presentations in Microsoft PowerPoint.
XML-based PowerPoint format, improved version with compatibility for modern software.
OpenDocument Presentation, open-source presentation format used in LibreOffice.
Apple Keynote presentation file, used on Mac for creating slideshows.
eBook format, widely supported across e-readers for digital books.
Amazon’s eBook format, optimized for Kindle devices.
Amazon Kindle format with DRM protection, used for digital books.
Enhanced Kindle format with additional support for complex formatting.
Hypertext Markup Language, used for creating web pages.
Alternate HTML extension, same functionality for web documents.
Extensible Hypertext Markup Language, stricter than HTML for mobile devices.
Extensible Markup Language, structured format for data exchange.
Markdown, text format for creating formatted documents, popular in documentation.
JavaScript Object Notation, used for data interchange between applications.
YAML Ain't Markup Language, common in configuration files for software.
Alternate extension for YAML files, used in configuration settings.
Initialization file, used for configuration settings in software.
Log file, contains a record of events, used in software and systems.
Texture file format, used in 3D applications and gaming.
StarOffice Writer document, used in the discontinued StarOffice suite.
OpenOffice.org 1.x Text Document Template, used for template files in OpenOffice.
StarOffice Document Writer, used in StarOffice.
Microsoft Works Spreadsheet, used in the discontinued Microsoft Works suite.
WordPerfect Document, used for text documents in Corel WordPerfect.
Microsoft Works Word Processor, used in the Microsoft Works suite.
OpenOffice Calc Spreadsheet, used in OpenOffice for data storage.
Data Interchange Format, used to import/export spreadsheets.
Print file, saved as plain text, often used in document printing.
Lotus 1-2-3 Spreadsheet, legacy format used in Lotus spreadsheets.
OpenOffice.org 1.x Impress Presentation, used for slideshows.
PowerPoint Slide Show, automatically opens as a slideshow.
PowerPoint Template, used to create multiple presentations with the same format.
OpenDocument Presentation Template, used in OpenOffice Impress.
Database File, used in dBASE and other database software.
Palm Resource File, used in Palm devices and Palm OS applications.
Microsoft eBook format, used for digital books on Microsoft Reader.
FictionBook, an XML-based eBook format popular in Russia.
Apple iBooks format, used for interactive eBooks on Apple devices.
Comic Book Archive, stores comic images in ZIP format for e-readers.
Comic Book Archive (RAR), stores comic images in RAR format for e-readers.
Open XML Paper Specification, used for fixed-layout documents in Windows.
XML Paper Specification, used to save document layouts for viewing or printing.
Format for scanned documents, optimized for text-heavy images.
AbiWord Document, open-source format for word processing.
ClarisWorks document, used in Apple’s ClarisWorks suite.
ASCII text file containing information about digital content, often used in releases.
ReStructuredText, a lightweight markup language for documentation.
GNU Texinfo format, used for technical documentation.
Standard Generalized Markup Language, used for structured documents.
Darwin Information Typing Architecture, used for structured content authoring.
XML-based DITA files, used in content management.
Screenwriting format, text-based for screenplays.
Outline Processor Markup Language, used for outlines and notes.
Scrivener project file, used for writing and organizing in Scrivener software.
WordPerfect Document, legacy format used in Corel WordPerfect.
Write Document, used in Windows Write, an early word processor.
Crossword Compiler, used for creating crosswords.
TextMaker Document, used in SoftMaker Office suite.
Kindle Annotation file, stores notes for Kindle books.
Notability note file, used for notes on iOS devices.
OneNote file, used for note-taking and organizing in Microsoft OneNote.
OneNote Table of Contents, used for navigation in OneNote notebooks.
Google Docs link file, opens documents in Google Docs.
Google Sheets link file, opens spreadsheets in Google Sheets.
Google Slides link file, opens presentations in Google Slides.
Google Drawings link file, opens drawings in Google Drawings.
WordPerfect 5 Document, used in WordPerfect version 5.
WordPerfect 6 Document, used in WordPerfect version 6.
Unix Manual, used for Unix documentation.
Manual (ME macros), formatting language for UNIX manuals.
Text formatting system for UNIX, used in technical documentation.
Formatting language in UNIX for documents.
Email Message, used for saved email messages.
Outlook Message, used to save emails from Microsoft Outlook.
Outlook Template, used to create reusable email templates.
iCalendar, standard for calendar events, used in scheduling.
vCalendar, used for sharing calendar events.
Resource Description Framework, used for metadata.
OpenDocument Master Document, used for organizing multiple documents.
OpenDocument Text Template, used in LibreOffice.
OpenOffice HTML Document Template.
OpenOffice Extension, used for plugins in OpenOffice.
StarOffice Drawing, used for vector graphics in StarOffice.
GNU documentation format, used in software manuals.
SGML file for structured documents.
Macro-enabled Word Document, supports embedded macros.
MP3 is a commonly used compressed audio format that reduces file size while maintaining sound quality, popular in music and media.
WAV is an uncompressed audio format with high quality, widely used in professional audio and Windows applications.
AIFF is an uncompressed audio format commonly used on Mac OS and for professional audio editing.
AAC is a compressed audio format that offers better sound quality than MP3 at similar bit rates, commonly used in Apple products.
FLAC is a lossless audio format that compresses files without losing quality, popular among audiophiles.
ALAC (Apple Lossless) is a lossless audio format developed by Apple, used for high-quality audio storage.
WMA is a Windows Media Audio format that provides options for both lossy and lossless compression, often used on Windows.
OGG is an open-source compressed format known for high-quality audio at lower file sizes, frequently used in streaming.
Opus is an open-source format optimized for low-latency audio, popular in VoIP and streaming applications.
M4A is an audio-only version of MPEG-4 commonly used by iTunes and Apple devices for music files.
M4B is a format designed for audiobooks with chapter markers and other features, commonly used on Apple devices.
M4P is a protected version of the MPEG-4 format, often used for DRM-protected files purchased from iTunes.
M4R is a format for ringtones, used primarily by Apple devices for custom ringtones.
AMR is a compressed audio format used in mobile phones for voice recording, especially in messaging.
AWB (AMR-WB) is a wideband extension of AMR, used in mobile communication for higher voice quality.
DSS is a format used in professional dictation devices for compressed voice recordings.
GSM is a low-quality audio format used for mobile phone recordings and in telephony systems.
VOX is a low-bitrate format used in telecommunication and voice applications.
PCM (Pulse-Code Modulation) is a raw audio format used in digital audio for uncompressed, high-quality sound.
DSD is a high-resolution audio format used in Super Audio CDs (SACD) for audiophile-grade sound.
DSF is a high-resolution audio format compatible with DSD players, often used in professional music production.
WavPack is a hybrid format that supports both lossy and lossless compression for high-quality audio.
MPC (Musepack) is an efficient format for high-quality audio compression, popular among enthusiasts.
APE (Monkey's Audio) is a lossless format that compresses audio without sacrificing quality, used in archiving music.
RA (RealAudio) is a format used for streaming audio over the internet, originally developed by RealNetworks.
RAM (RealAudio Metafile) is a format for streaming RealAudio files on the web.
RM (RealMedia) is a format created by RealNetworks for streaming audio and video.
TTA (True Audio) is a lossless format providing high-quality compression for audiophiles.
CD audio format is the standard format for audio on Compact Discs, providing high-quality sound.
CDA files are shortcuts that reference audio tracks on CDs for playback.
SWA (Shockwave Audio) was used in Adobe Shockwave applications for web-based audio.
SMP (SampleVision) is a format for sampling audio, commonly used in early digital sampling software.
SND is a generic sound file format, often used on Unix-based systems.
SoundFont (SF2) is a format that stores sampled musical instrument sounds, popular in MIDI composition.
SFARK is a compressed SoundFont format used to reduce the size of SoundFont files.
NWC (Noteworthy Composer) is a file format for music notation created in Noteworthy Composer software.
MIDI is a format that encodes musical performance data, used to control digital instruments.
MIDI is a variation of the MIDI format, commonly used in music production.
KAR is a Karaoke MIDI format that combines MIDI music with synchronized lyrics.
RMI (RIFF MIDI) is a type of MIDI file stored in RIFF format, used for cross-compatibility.
PSF (PlayStation Sound Format) is used to store audio from PlayStation games.
SSF (Sega Saturn Sound Format) stores audio for Sega Saturn games.
SPC (Super Nintendo Sound Format) is used for SNES game music.
GYM (Genesis YM2612 Sound Format) stores audio from Sega Genesis/Mega Drive games.
VGM (Video Game Music) is a format for video game soundtracks, used in emulation.
VGZ is a compressed version of the VGM format, used in gaming emulation.
SAP (Atari Sound Format) is used for audio on Atari 8-bit computers.
SID is a format for music created on the Commodore 64's SID chip.
MOD is a format used in camcorders, primarily by JVC and Canon.
S3M (Scream Tracker 3 Module) is a tracker music format used in Scream Tracker.
IT (Impulse Tracker) is a module format for digital music used in Impulse Tracker.
XM (FastTracker 2 Extended Module) is a format for tracker music, used in FastTracker.
MO3 is a compressed module format with support for MP3 and OGG samples.
MT2 (MadTracker 2) is a module format used in the MadTracker software.
PTM (Poly Tracker Module) is a tracker music format.
STM (Scream Tracker Module) was used in early Scream Tracker software.
ULT (UltraTracker) is a format for module music in UltraTracker.
M15 is a tracker module format used in early music software.
MED (OctaMED) is a format for tracker music on the Amiga platform.
669 is a tracker format used in early DOS-based music tracking software.
FAR (Farandole Composer Module) is a format used for composing tracker music.
PLJ is an alternate tracker format used for digital audio.
DSM (Digital Sound Module) is a format for tracker music.
OKT (Oktalyzer) is a format for music on the Amiga platform.
UMX (Unreal Music Package) stores audio for the Unreal game series.
AMF (Advanced Module Format) is a tracker module format.
MTM (MultiTracker Module) is used in early digital music trackers.
AHX is an Amiga format designed for chiptune music.
MP4 is a common multimedia format used for videos and audio, widely supported across all platforms and devices.
M4V is similar to MP4 but often used by Apple products and supports DRM protection.
MOV is Apple’s proprietary video format, known for high-quality video, often used in professional environments.
AVI (Audio Video Interleave) is a widely supported video format on Windows, offering high-quality playback.
WMV (Windows Media Video) is a format created by Microsoft, optimized for Windows Media Player.
FLV (Flash Video) was commonly used in Adobe Flash-based video players, now declining due to Flash deprecation.
MKV (Matroska Video) is a flexible video format supporting multiple audio and subtitle tracks, popular for HD content.
WebM is an open-source video format designed for web use, commonly used in HTML5 video streaming.
VOB (Video Object) is the standard format for video on DVDs, containing video, audio, and subtitle data.
MPEG is a group of formats developed by the Moving Picture Experts Group, commonly used in video playback.
MPG is a variation of the MPEG format, commonly used for digital video.
3GP is a multimedia format often used on mobile phones for video recording and streaming.
3G2 is an extended version of 3GP, optimized for CDMA mobile networks.
MXF (Material Exchange Format) is a professional video format for digital broadcasting, used in video production.
F4V is a format used by Adobe Flash Player, supporting H.264 video.
F4P is a protected version of F4V, used for DRM-protected Flash content.
F4A is the audio-only version of the F4V format, used in Adobe Flash.
F4B is an audiobook format, similar to F4A, often used for DRM-protected content in Flash.
TS (Transport Stream) is a format for broadcasting high-quality video over networks, widely used in digital broadcasting.
MTS (MPEG Transport Stream) is used for high-definition videos, often from Sony and Panasonic camcorders.
M2TS is an extension of the TS format, used for Blu-ray and AVCHD video recording.
DivX is a compressed video format used for high-quality video at low bitrates, popular for internet video.
OGV is an open-source video format from the Ogg project, supported by HTML5.
RMVB (RealMedia Variable Bitrate) is an extension of RM, allowing higher quality through variable bitrate.
SWF (Shockwave Flash) is an Adobe Flash format, often used for animation and interactive graphics.
ASF (Advanced Systems Format) is a Microsoft format for streaming audio and video content.
AMV is a compressed format often used in low-quality portable media players.
MPE is a lesser-used variation of the MPEG format for video playback.
MPV is a video-only version of MPEG, without audio tracks.
M2V is a MPEG-2 video-only format, often used in DVD authoring.
QT is Apple’s QuickTime format, known for high-quality video playback on Mac.
YUV is a raw video format used in video processing, typically uncompressed.
H.264 is a high-compression video format widely used for streaming, Blu-ray, and online video.
H.265 (HEVC) is an advanced version of H.264, offering higher compression for UHD content.
HEVC (High Efficiency Video Coding) is another term for H.265, used in UHD and HDR video.
AVCHD (Advanced Video Coding High Definition) is a format for HD video on camcorders.
BIK is a video format used for video game cutscenes, created by Bink Video.
BRAW (Blackmagic RAW) is a professional format for high-quality video capture.
CPI is a metadata format used by AVCHD camcorders, storing video settings and timestamps.
DAV is a proprietary format used by Dahua DVRs for security footage.
DRC is a Google VR180 format for high-definition immersive video.
DV is a digital format for high-quality video on camcorders.
FLC is an animation format used in Autodesk applications.
FLI is an animation format used in Autodesk Animator, popular in early animation software.
GXF (General Exchange Format) is a format used in broadcasting to share video.
MJPG (Motion JPEG) is a video format where each frame is a JPEG image.
MJPEG is an alternate form of MJPG, used in digital cameras.
MPEG-1 is a standard format for video, used in VCD and early internet video.
MPEG-2 is a widely used video standard, especially in DVD and digital television.
MPEG-4 is a multimedia standard widely used for video and audio.
PS (Program Stream) is a format used in DVDs for multiplexing video and audio.
PVA is a format for digital video broadcasting.
RV (RealVideo) is a format for streaming video from RealNetworks.
SCM is a video format used in Samsung devices.
SMV is a video format used in some portable media players.
SSIF is a format used in Blu-ray 3D for stereoscopic video.
TP is a format used in high-definition recordings.
TRP is a transport stream format used for high-definition video.
VCD is a standard format for video on CDs.
WTV is a format used by Windows Media Center for recorded TV shows.
XESC is a format used in Microsoft Expression Encoder.
XVID is a compression format similar to DivX, commonly used in digital media.
JPEG is a widely used compressed image format, ideal for photographs and web graphics.
Alternate extension for JPEG format, widely compatible and commonly used for photos.
PNG is a lossless format supporting transparency, often used for logos and web graphics.
GIF is a format for simple animations and images with limited colors, popular for web use.
BMP is an uncompressed image format developed by Microsoft, used for high-quality images.
TIFF is a high-quality image format often used in printing and professional photography.
Alternate extension for TIFF files, commonly used for images requiring high resolution.
Scalable Vector Graphics, a vector format for web graphics that can scale without quality loss.
WebP is a modern image format developed by Google, offering high-quality compression for web use.
High Efficiency Image Coding, used by Apple for storing photos on iOS devices.
High Efficiency Image Format, known for efficient storage and high quality, popular on Apple devices.
RAW image format captures all data from a camera sensor without processing, popular in photography.
Canon RAW format, used by Canon cameras to store unprocessed image data.
Nikon RAW format, used by Nikon cameras for uncompressed, high-quality images.
Sony RAW format, used in Sony cameras to store unprocessed image data.
Olympus RAW format, used in Olympus digital cameras.
Panasonic RAW format, used in Panasonic cameras for high-quality image storage.
Digital Negative, an open RAW image format developed by Adobe for editing and archiving.
Pentax RAW format, used in Pentax cameras for unprocessed photos.
Fuji RAW format, used in Fujifilm cameras for uncompressed images.
Sony RAW format, an older version used in some Sony cameras.
Sony RAW file, commonly used in earlier Sony digital cameras.
Minolta RAW format, used in Minolta cameras.
Kodak RAW format, used in some Kodak digital cameras.
Sigma RAW format, used in Sigma cameras for high-quality images.
Epson RAW format, used in Epson cameras.
Hasselblad RAW format, used in professional Hasselblad cameras.
Phase One RAW format, used in high-end Phase One cameras.
Hasselblad format for storing high-quality, unprocessed images.
Leaf RAW format, used in Leaf medium format digital backs.
Mamiya RAW format, used in Mamiya cameras.
JPEG XR, an enhanced version of JPEG with better compression and quality.
High Definition Photo, used in Microsoft’s JPEG XR format.
Alternate extension for JPEG XR, developed by Microsoft.
Icon format used in Windows for icons, stores multiple resolutions.
Photoshop Document, used in Adobe Photoshop, supports layers and effects.
Large Document Format for Photoshop, used for very large images exceeding PSD limits.
Adobe Illustrator Artwork, a vector format used for illustrations and logos.
Encapsulated PostScript, used for vector graphics, compatible with many illustration programs.
Corel Photo-Paint image, used in Corel’s image editing software.
Silicon Graphics Image, used on SGI workstations for high-quality images.
RGB format, stores uncompressed images in RGB color space.
RGB format with an alpha channel for transparency.
Black and white format for grayscale images.
Portable Bitmap, a monochrome image format used in Netpbm software.
Portable Graymap, a grayscale image format used in Netpbm.
Portable Pixmap, a color image format used in Netpbm.
Portable Any Map, supports monochrome, grayscale, and color images.
Pixelmator Image, used in Pixelmator on macOS.
Digital Picture Exchange, used in digital film production.
Cineon Image, used in film production for high-quality image storage.
Targa format, used in graphics applications.
Alias format, used for graphics and texture storage.
Targa format variant, used in graphics software.
Disk image file, stores exact copies of disks for mounting or burning.
Capture One Image format, used for raw image editing.
JPEG 2000, an improved version of JPEG with better quality and compression.
JPEG 2000 format extension, used for high-quality images.
PC Paintbrush format, used in early PC graphics software.
Run-Length Encoding, a simple compression format used in Windows.
Kodak RAW format for digital cameras.
Kodak DC2 RAW format, used in some Kodak cameras.
Photo CD, a format developed by Kodak for storing high-quality images.
X Pixmap, used in X Window System for bitmaps and icons.
X Window Dump, used to capture screen images on X Window systems.
Cursor file format, used in Windows for custom cursors.
Animated Cursor, used in Windows for animated mouse cursors.
Windows Metafile, used for vector and bitmap images on Windows.
Enhanced Metafile, an improved version of WMF for graphics on Windows.
Affinity Photo file, used in Affinity Photo for image editing.
Affinity Designer file, used for vector design in Affinity Designer.
DirectDraw Surface, used for textures in 3D graphics and video games.
PaintShop Pro image, used in Corel PaintShop Pro for raster graphics.
Paint Tool SAI image format, used in the SAI software for digital art.
OpenRaster, an open format for layered images, used in digital painting software.
Targa Image, often used for textures in video games.
Apple Icon Image, used for icons on macOS.
JPEG File Interchange Format, a standard for exchanging JPEG files.
X Bitmap, used in X Window System for monochrome bitmaps.
Sprite file format, used in game development.
Windows executable file format for running applications and programs.
Batch file used in Windows to execute a series of commands in the command prompt.
Windows command file, similar to a batch file, used to execute command-line instructions.
Windows installer package format, used to install software on Windows systems.
Binary file format that stores data or executable code, often used for firmware or game files.
Legacy executable file format for DOS, used to execute command-line applications.
MacOS application package, used to install and run applications on Mac.
Windows gadget, used for mini-applications or widgets on the desktop.
Windows Script File, used to execute scripts written in multiple languages in Windows.
Windows screensaver file, often executable to launch screen-saving visuals.
Program Information File, a shortcut format used in DOS and Windows to start applications.
Control Panel Item, used in Windows to open Control Panel tools.
Visual Basic script file, commonly used for automation tasks in Windows.
Visual Basic Script file, used to execute scripts in Windows environments.
Encoded Visual Basic script file, used for obfuscating code.
JavaScript file, used to execute code on web browsers and servers.
Encoded JavaScript file, used to obfuscate JavaScript code.
Windows Script Host file, a configuration file used to run scripts in Windows.
Setup Information file, used by Windows to install software or drivers.
PowerShell script file, used to execute PowerShell commands on Windows.
PowerShell module file, used to define functions and cmdlets in PowerShell.
PowerShell formatting file, used to define how objects are displayed in PowerShell.
PowerShell Console file, used to store PowerShell console settings.
PowerShell Console Configuration file, an updated version of PSC1.
Windows Installer Patch, used to apply updates or patches to installed programs.
Microsoft Update file, used to distribute software updates on Windows.
Script Component file, used to store scripts for execution.
HTML Application, an executable HTML file that runs in Windows Script Host.
Shell script file, used to execute command-line instructions in Unix-based systems.
Executable script file used in Linux to run applications.
KornShell script, a shell script file used in Unix-based systems.
Bash script file, used for automation in Unix/Linux systems.
C shell script, used for executing commands in the C shell environment.
T C Shell script, used for executing commands in Unix-based systems.
Z shell script, used in Unix systems, particularly with the Zsh shell.
AppleScript file, used to automate tasks in macOS.
AppleScript bundle, used in macOS for organizing AppleScript files.
Apple Open Scripting Architecture, used for automation in macOS.
AppleScript Scripting Addition, adds additional commands to AppleScript.
Automator Workflow, used in macOS for automating tasks.
Android Package, used to distribute and install applications on Android devices.
Apple Disk Image, used for installing software on macOS.
iOS App Store Package, used to install applications on iOS devices.
Debian package, used to install applications on Debian-based Linux distributions.
Red Hat Package Manager file, used to install applications on Red Hat-based systems.
Flatpak package, a universal Linux package format for sandboxed applications.
Snap package, a universal Linux package format for securely installing applications.
VMware Virtual Disk, used to store virtual machine disk images.
Open Virtual Appliance, used for packaging virtual machines.
Open Virtualization Format, used for distributing virtual machines.
Disc image format, used for optical disc storage and mounting.
Extensible Firmware Interface, executable format used in EFI systems.
Dynamic Link Library, contains code and resources used by Windows applications.
Device driver file, used by Windows to communicate with hardware devices.
System file, used by Windows for device drivers and core system functions.
ActiveX Control, used in Windows for interactive web elements and applications.
Dynamic Link Library used for resources in software localization.
Library file, used in Unix/Linux systems for code libraries.
Shared object file, Unix/Linux equivalent to DLLs, used in programs.
Dynamic library, macOS version of shared libraries.
Executable file, often used in Unix systems.
Executable and Linkable Format, standard executable file format in Unix.
Program file, used in various systems for executable programs.
Portable executable format for Linux, allows applications to run on various distributions.
Common Gateway Interface script, used for executing scripts on web servers.
FastCGI script, a faster version of CGI used in web applications.
Mozilla Installer Package, used to install plugins and extensions in Mozilla applications.
Java Archive, executable format for running Java applications.
Java Class file, compiled code used in Java applications.
Web Application Archive, used to distribute web applications in Java.
Enterprise Application Archive, used to package enterprise Java applications.
Windows Phone Application Package, used to install apps on Windows Phone.
Erlang BEAM file, contains compiled Erlang code.
Python Dynamic Module, a compiled Python module.
macOS plugin, used for adding functionality to applications.
Native Client Executable, used in Google Chrome for running native code.
Windows Application Package, used for apps on Windows Store.