Right-click only on the first file ( ...part01.rar ) and select "Extract Here" or "Extract to..." 7-Zip.

If you are missing a part or getting an error, I can help you troubleshoot the file extraction or suggest how to find the remaining pieces. Do you have all 10 parts?

The software will automatically detect all other parts ( .part02 - .part10 ) and reconstruct the complete file.