B.7z

The file format and its primary software, 7-Zip , are widely regarded as the gold standard for high-ratio, lossless file compression. This open-source tool is often cited as a "must-have" for Windows users due to its versatility and efficiency. Performance & Compression

: Using the LZMA and LZMA2 algorithms, 7z archives can be 30–70% smaller than standard ZIP files. The file format and its primary software, 7-Zip

: While it specializes in .7z, the software can extract over 30 different formats, including RAR, ISO, and DMG. The file format and its primary software, 7-Zip