7z

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== Format details ==
 
== Format details ==
The 7z format defines many compression methods. The ones normally used are [[LZMA2]] (default for 7-Zip 9.30 alpha +), [[LZMA]] (default for 7-Zip prior to 9.30 alpha), [[PPMd]], and [[bzip2]].
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The 7z format defines many compression methods. The ones normally used are [[LZMA2]] (default for 7-Zip 9.30 alpha ), [[LZMA]] (default for 7-Zip prior to 9.30 alpha), [[PPMd]], and [[bzip2]].
  
 
== Identification ==
 
== Identification ==
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== Sample files ==
 
== Sample files ==
* https://telparia.com/fileFormatSamples/archive/sevenZip/
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* {{DexvertSamples|archive/sevenZip}}
  
 
== Links ==
 
== Links ==
 
* [https://www.7-zip.org/7z.html 7-Zip page about 7z Format]
 
* [https://www.7-zip.org/7z.html 7-Zip page about 7z Format]
 
* [[Wikipedia:7z|Wikipedia article]]
 
* [[Wikipedia:7z|Wikipedia article]]

Latest revision as of 02:55, 28 December 2023

File Format
Name 7z
Ontology
Extension(s) .7z
MIME Type(s) application/x-7z-compressed
LoCFDD fdd000539
PRONOM fmt/484
Wikidata ID Q270131

7z is a file format for archiving and data compression, developed by Igor Pavlov. It is the native format of the 7-Zip archiving application.

Contents

[edit] Format details

The 7z format defines many compression methods. The ones normally used are LZMA2 (default for 7-Zip 9.30 alpha ), LZMA (default for 7-Zip prior to 9.30 alpha), PPMd, and bzip2.

[edit] Identification

7z files begin with signature bytes '7' 'z' BC AF 27 1C.

[edit] Related formats

  • S7z
  • UFA (predecessor?)
  • 777 (predecessor?)
  • BIX (predecessor?)
  • ARG (same author)

[edit] Specifications

  • Refer to the DOC/7zFormat.txt and DOC/Methods.txt files in the source distribution.

[edit] Software

  • 7-Zip
  • 7zX for Mac
  • p7zip
  • Radyx - creates 7-zip archives using only the LZMA2 compression algorithm provided by the Fast LZMA2 Library

[edit] Sample files

[edit] Links

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