What are the Types of File Extensions?

Types of File Extensions

There are many types of files that have different extensions. A file extension is the suffix located at the end of the file name, usually separated from the name by a dot (.)

Next we will group the extensions by file types, classifying them as follows:

Text File Extensions

Identifies plain text files such as .txt and .log and rich text files such as:

.doc Microsoft Word Document
.docx Microsoft Word Open XML Document
.log Log File
.msg Outlook Mail Message
.odt OpenDocument Text Document
.pages Pages Document
.rtf Rich Text Format File
.tex LaTeX Source Document
.txt Plain Text File
.wpd WordPerfect Document
.wps Microsoft Works Word Processor Document

Graphics File Extensions

They identify the images or graphic figures, they are examples of graphic extensions:

.bmp Bitmap Image File
.gif Graphical Interchange Format File
.jpg JPEG Image
.png Portable Network Graphic
.psd Adobe Photoshop Document
.tga Targa Graphic
.thm Thumbnail Image File

Audio File Extensions

They identify the files that contain sound, they are examples:

.aif Audio Interchange File Format
.iff Interchange File Format
.m3u Media Playlist File
.m4a MPEG-4 Audio File
.mid MIDI File
.mpa MPEG-2 Audio File
.out Real Audio File
.wav WAVE Audio File
.wma Windows Media Audio File

Video File Extensions

They identify the videos, are examples:

.avi Audio Video Interleave File
.flv Flash Video File
.m4v iTunes Video File
.mov Apple QuickTime Movie
.mp4 MPEG-4 Video File
.mpg MPEG Video File
.rm Real Media File
.swf Shockwave Flash Movie
.vob DVD Video Object File
.wmv Windows Media Video File

Compressed File Extensions

They identify the files that are packed with in a single unit, they are examples:

.7z 7-Zip Compressed File
.cbr Comic Book RAR Archive
.gz Gnu Zipped Archive
.pkg Mac OS X Installer Package
.rar WinRAR Compressed Archive
.tar.gz Compressed Tarball File
.zip Zipped File
.zipx Extended Zip File

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