Users are urged to update to 7-Zip version 25.00 or later to patch these issues. Handling .7z.001, .7z.002, etc.
Right-click on waterfall.7z.001 and select "Extract" using 7-Zip. The software automatically detects and joins the remaining volumes ( .002 , .003 , etc.) to reconstruct the original file. Risk Warning waterfall.7z.002
Given the recent association of archives named "Waterfall" with path traversal exploits, you should (like a virtual machine) if you received it from an untrusted source. Extracting such files with an outdated version of 7-Zip could compromise your system. Users are urged to update to 7-Zip version 25