If you don't already have the software, download and install the official version from the 7-Zip website .
To create a .7z archive using , you should use the 7z format with LZMA2 compression for the best balance of speed and file size reduction. Step 1: Installation 1,5m.7z
Most modern systems should use the 64-bit x64 version. If you don't already have the software, download
If you cannot install software, you can use 7-Zip Portable, which runs directly from a folder or USB drive. Step 2: Creating the Archive you can use 7-Zip Portable