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.GZ File Extension

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File TypeGnu Zipped Archive

DeveloperThe GNU Project
3.9 (44 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryCompressed Files


This file is saved in a binary format, which requires a specific program to read its contents.


Archive file compressed by the standard GNU zip (gzip) compression algorithm; contains a compressed collection of one or more files; commonly used on Unix operating systems for file compression.

More Information

Gzip is standardly installed on most Unix operating systems and is recognized by most file decompression utilities for Mac, Windows, and Unix. Gzip compression, while similar to .ZIP files, should not be confused with ZIP compression.

NOTE: Files with the extension ".tar.gz" or ".tgz" are known as a "tarballs," which are are .TAR files compressed with Gzip compression. These files must first be decompressed, then expanded using a TAR utility. They are commonly found on Unix systems.

Program(s) that open .GZ files
Microsoft Windows LogoWindows
Smith Micro StuffIt Deluxe 2010
Corel WinZip 18.5
WinRAR 5
E-merge WinAce
Acubix PicoZip
Mac OS X LogoMac
Smith Micro StuffIt Deluxe 16
Incredible Bee Archiver
Apple Archive Utility
Linux LogoLinux
Android LogoAndroid
File Viewer for Android
Updated 9/9/2015