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GZIP compressed archive file definition and 2 other file types and linked programs information.

 

File extension gz is used by following file type(s):

file type 1 description:
Default file extension for .gz file type:
GZIP compressed archive file
The GZ file extension is used for GNU GZIP compressed archives, a standard archive format used on Unix/Linux based computers.

There are several versions of this format, but the original was based on the DEFLATE algorithm, which is a combination of LZ77 and Huffman coding. It was first introduced in 1993.

MIME: application/x-compressed, application/x-gzip

Programs
that open gz files:
7-zip (Microsoft Windows)
7-zip (Microsoft Windows)
ALZip (Microsoft Windows)
EZ7z for Mac OS X (Apple OS X)
IZArc (Microsoft Windows)
PeaZip (multiplatform software)
sArchiver (Apple OS X)
The Unarchiver (Apple OS X)
USB Flash Drive for iOS (iOS)
WinRAR (Microsoft Windows)
WinZip (Microsoft Windows)
Zipeg (Microsoft Windows)
Zipeg for Mac (Apple OS X)
ZipZag (Microsoft Windows)

 

 file type 2 description:
GIMP image file
File extension used by GIMP for created graphic images.
Programs
that open gz files:
Blender (Microsoft Windows)
GIMP (multiplatform software)