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 and Extract .001 Files - Microsoft Q&A
To access the content, you must have of the archive and follow these steps: M20CH03.7z.001
: Download and install a compatible archiver like the official 7-Zip or WinRAR . You can use 7-Zip on any computer, including