one of the best compression ratio for ZIP and GZIP formats unpack only for RAR, RPM, ARJ, CAB, CHM, CPIO, CramFS, DMG, DEB, FAT, ISO, HFS, LZH, LZMA, MBR, NTFS, MSI, NSIS, SquashFS, XAR, Z, VHD, WIM packing/unpacking support for 7z, ZIP, TAR, BZIP2, GZIP

high compression ratio in 7z format using LZMA/LZMA2 compression Trademark Note 1: Microsoft®, Windows® and other product names are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. The default 7z file format offers one of the highest compression ratio (using LZMA and LZMA2 - Lempel–Ziv–Markov chain algorithm an algorithm used for lossless data compression) that's why this app is probably the most popular free file archiver. You can use the program in three ways: from its graphical user interface (most popular), a command line interface or as a shell integration. The default archive format is 7z but it works (read and write) other popular archive formats. It is one of the best, free file archivers that comes with a high compression ratio. 7-Zip (also written as 7zip) is a free, open source (under GNU LGPL license) file archiver for Microsoft® Windows®.

7z to zip download