To open and extract the contents, you must have all parts of the archive in the same folder. How to Open and Extract It
Download and install 7-Zip if you don't have it. While Windows 11 has basic built-in support for some archives, dedicated tools like 7-Zip or PeaZip are more reliable for multi-volume files.
Ensure you have parts .001 through at least .008 (and any subsequent parts) saved in the same directory.
The .008 extension means you likely have other files named s4920.7z.001 , s4920.7z.002 , and so on.