![]() ![]() The main benefits of LZMA include, according to Igor Pavlov, high compression ratio, variable dictionary size, high compression speed, high decompression speed, small memory footprint, small code size, and support for multi-threading and hyper-treading, which are technologies that allow a different thread to execute every processing cycle. ![]() Out of these, LZMA is the default compression method of the archive format. Initially released in 1999 by Igor Pavlov, a Russian freelance programmer and the current maintainer of the file archiver 7-Zip, 7z is an open archive file format with support various compression methods, including LZMA, LZMA2, PPMD, BCJ, BCJ2, BZip2, and Deflate. In this article, we are introducing some of the main features of 7z, the most popular programs that you can use to easily open all files with the 7z file extension and create your 7z archives, and, above all, the most efficient way how you can recover deleted 7z files. Being the youngest of the three, the 7z file format has a few clever tricks up its sleeve that its older comrades don’t. The 7z archive file is the youngest of the famous trifecta of archive file types, which also includes RAR and ZIP.
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