Best.7z: The

: Use LZMA2 , which is highly efficient for large data sets and modern multi-core processors.

: Set this as high as your computer’s RAM allows to improve the compression of repetitive data. The Best.7z

: Choose Ultra for the smallest possible file size. : Use LZMA2 , which is highly efficient

: Enable Solid mode (Solid Block Size: Solid). This treats multiple files as a single continuous stream, which significantly improves the compression ratio for groups of similar files. Core Benefits of the 7z Format Does 7z compress better than zip? - Microsoft Community Hub : Use LZMA2

To create the most efficient archive possible (an "ultimate" version of The Best.7z ), use the following configuration settings within the 7-Zip interface: : Select 7z .