LZMA is a modified version of LZ77 (similar to DEFALTE) which employs entropy coding by Markov chains and Patricia treesħ-Zip may preprocess 32-bit x86 executable files with either BCJ or BCJ2 to achieve greater compression ratios.ħ-Zip supports data encryption by 256-bit AES algorithm.It is one of the most powerful compression algorithms to date Bzip2 - Burrows-Wheeler algorithm that also employs Huffman coding.PPMD is an improved version of PPM algorithm orignally developed in 1984.DEFLATE is one of the most basic and widespread algorithms out there.You can open 7Z file with 7-Zip software or with any other popular unarchiver.ħZ files may employ one of the following compression algorithms: These stored files may also be pre-processed or encrypted. These files contain archives or one or several other files that are compressed to conserve disk space. 7Z file extension is used by 7- Zip files.
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