7z Archive: Difference between revisions

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<pre>
<pre>
// signature header
// signature header
6 bytes (char) - signature // 37 7A BC AF 27 1C
6 bytes (char) - signature // 37 7A BC AF 27 1C   "7z..'."
1 bytes (uint8) - version major  // 0
1 bytes (uint8) - version major  // 0
1 bytes (uint8) - version minor  // 4
1 bytes (uint8) - version minor  // 4
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* Files can be compressed with '''LZMA''', '''LZMA2''', '''BZIP2''' and '''Deflate''' algorithms.
* Files can be compressed with '''LZMA''', '''LZMA2''', '''BZIP2''' and '''Deflate''' algorithms.
* 7z file supports encryption with the '''AES''' algorithm with a 256-bit key.


=== Games ===  
=== Games ===  
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[[Category:Extension_7z | Extension: 7z]]
[[Category:Extension_7z | Extension: 7z]]
[[Category:BMS_None | BMS: None]]
[[Category:BMS_None | BMS: None]]
[[Category:LZMA compression]]
[[Category:BZIP2 compression]]
[[Category:Deflate compression]]
[[Category:AES encryption]]
[[Category:File Format]]
[[Category:File Format]]

Latest revision as of 14:27, 13 February 2022

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7z

  • Format Type : Archive
  • Endian Order : Little Endian
  • Signature : 7z / 37 7A BC AF 27 1C


Format Specifications

// signature header
6 bytes (char) - signature // 37 7A BC AF 27 1C   "7z..'."
1 bytes (uint8) - version major  // 0
1 bytes (uint8) - version minor  // 4
4 bytes (uint32) - start header CRC
4 bytes (uin64) - next header offset  // e.g. 12
4 bytes (uin64) - next header size // e.g. 162
4 bytes (uint32) - next header CRC

// TODO

Notes and Comments

  • Files can be compressed with LZMA, LZMA2, BZIP2 and Deflate algorithms.
  • 7z file supports encryption with the AES algorithm with a 256-bit key.

Games

List of games using this file format:

  • TODO

QuickBMS Script

Not written yet.

Compatible Programs

See Also