Default compression algorithms used by 7-Zip are:
- zip: deflate (zip may be compressed by not standard algorithm ppmd - good for text files)
- 7z: lzma or lzma2
- tar: alone don't use any compression, it just group directories and folders in uncompressed archive, but may be in variants:
- tar.gz or tgz: tar archive compressed by gzip
- tar.bz or tbz: tar archive compressed by bzip2
- tar.xz or txz: tar archive compressed by xz (lzma or lzma2)
- tar.*, etc.: tar archive may be compressed by any compressor: lzip, lzop, lz4, zstd, lzma, lrzip, etc.
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Hi Team,
We wanted to understand the default compression algorithm used by 7-Zip for the .zip extension and other extensions such as .7z, .tar.
Thanks in advance !
Default compression algorithms used by 7-Zip are:
- zip: deflate (zip may be compressed by not standard algorithm ppmd - good for text files)
- 7z: lzma or lzma2
- tar: alone don't use any compression, it just group directories and folders in uncompressed archive, but may be in variants:
- tar.gz or tgz: tar archive compressed by gzip
- tar.bz or tbz: tar archive compressed by bzip2
- tar.xz or txz: tar archive compressed by xz (lzma or lzma2)
- tar.*, etc.: tar archive may be compressed by any compressor: lzip, lzop, lz4, zstd, lzma, lrzip, etc.