File Types

There are hundreds of file types floating around on our computers. Let's figure out which ones do what and which programs will open them.
AV1 logo
What Is an AVIF File?
A man saving a Pages document as a PDF in Pages on a MacBook Pro.
How to Create a PDF File
An illustration of typefaces
What is WOFF? All About the Compressed Web Font Format
Person editing SVG files on a laptop
What's an SVG File and How Do You Open One?
Person looking at an Android smartphone with an APK file on the screen
What's an APK File and How Do You Open One?
GIF Files
What Is a GIF?
XVID files in Windows 10
What's an XVID File and How Do You Open One?
A green zip file
What 'Zip' Files Are and How to Use Them
JPG Files
What Is a JPG (JPEG) File?
Screenshot of several PNG files in Windows 10
What Is a PNG File?
Row of red work files, with one yellow one
What Exactly Is a Computer File?
EPUB files in Windows 10
What's an EPUB File and How Do You Open One?
Opening a CSV file with data in it
What's a CSV File and How Do You Open One?
Screenshot of several MOBI files in Windows 10
What's a MOBI File and How Do You Open One?
Screenshot of several FLAC files in Windows 10
How to Open, Edit, and Convert FLAC Files
Animation of opening a RAR file
What Is a RAR File?
EPS files in a folder in Windows 10
What's an EPS File and How Do You Open One?
Mouse cursor opening an .flv file to a dancing hamburger video
FLV Files: How to Play and Convert Them
Screenshot of several empty DEB files on Ubuntu
What's a DEB File and How Do You Open One?
INDD files in a folder in Windows 10
What's an INDD File and How Do You Open One?
IPSW files in Windows 10
What's an IPSW File and How Do You Open One?
Person sitting on a desk under three XML file icons holding an XML folder near a computer
What Is an XML File and How Do You Open One?
PSD files in Windows 10
What Is a PSD File?
ARW files in Windows 10 that open with Photos
What's an ARW File and How Do You Open One?
7Z files in Windows 10
What's a 7Z File and How Do You Open One?
Screenshot of several WMA files in Windows 10
What's a WMA File and How Do You Open One?
Screenshot of several EXE files in Windows 10
What's an EXE File and How Do You Open One?
Image of a person reading an ePub ebook
Convert ePub From a PDF to Make an Ebook
Screenshot of several SWF files in Windows 10
What's an SWF File and How Do You Open One?
Screenshot of several MKV files in Windows 10
What's an MKV File and How Do You Open One?
DXF Files
What's a DXF File and How Do You Open One?
Screenshot of several TIF files in Windows 10
TIF and TIFF Files: What They Are & How to Open and Convert Them
Several ISO files in Windows 10
What Is an ISO File?
SRT Files
What's an SRT File and How Do You Open One?
Screenshot of several VOB files
What's a VOB File and How Do You Open One?
Screenshot of several MPEG files in Windows 10
What's an MPEG File and How Do You Open One?
Person looking at aspx files on a computer
What's an ASPX File and How Do You Open One?
Screenshot of several VCF files in Windows 10
What's a VCF File and How Do You Open One?
AI Files
What's an AI File and How Do You Open One?
Screenshot of several ODT files in Windows 10
What's an ODT File & How Do You Open One?
RTF files
What's an RTF File and How Do You Open One?
Screenshot of several M4A files in Windows 10
What's an M4A File and How Do You Open One?
Screenshot of several files in a folder
What Is a File Extension & Why Are They Important?
Animated illustration of a .3gp file opening on a computer desktop
What's a 3GP File and How Do You Open One?
MD files
What Is an MD File?
MP4 file opening up to a Meerkat movie
How to Open, Edit, & Convert MP4 Files
Screenshot of several XVO files in Windows 10
What's an XVO File and How Do You Open One?
DMG files in macOS High Sierra
What Is a DMG File?
Screenshot of several PAGES files in macOS High Sierra
What's a PAGES File and How Do You Open One?
WAV Files
What Are WAV & WAVE Files and How Do You Open Them?
Person managing CR2 files
What Is a CR2 File?
PHP files in Windows 10
What's a PHP File and How Do You Open One?
M3U8 files that open in iTunes
What's an M3U8 File and How Do You Open One?
Screenshot of several ZIP files in Windows 10
What's a ZIP File and How Do You Open One?
Illustration of a person looking at ACSM files on a computer monitor.
What Is an ACSM File? (And How to Open One)
Screenshot of several PPTX files in Windows 10
What's a PPTX File and How Do You Open One?
OGG files in Windows 10
What's an OGG File and How Do You Open One?
Screenshot of WMV files in a folder
What's a WMV File and How Do You Open One?
KML Files
What's a KML File and How Do You Open One?