: Open the 7-Zip File Manager and navigate to the folder containing these files. Combine or Extract : Right-click the .001 file specifically.
Select or "Extract Here" from the 7-Zip menu. oath.7z.001
Do you have the of this file set (e.g., .002 , .003 ) in the same folder? How to Extract .7z.001 files - Microsoft Q&A : Open the 7-Zip File Manager and navigate