You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. How to Open ZIP/RAR/7Z Files in Windows 10 // Easy & Free!
Install one of the tools above (e.g., 7-Zip) . 27-09-2019.7z
Select to unpack the files into the current folder . You can use 7-Zip on any computer, including
A popular free app that handles many formats, including 7z . including 7z .