: Right-click specifically on the file ending in .001 . Extract : Hover over 7-Zip in the context menu. Choose Extract Here or Extract to "[Folder Name]" .

To open a file ending in , you must have all subsequent parts (e.g., .7z.002 , .7z.003 ) in the same folder, as these files represent a single large archive split into smaller pieces. Extraction Guide for Windows (7-Zip)

: Ensure every numbered part of the archive is in the same directory.

: 7-Zip will automatically detect and join the other parts to extract the full content. Alternatives by Device How to extract part files 001 using 7zip on windows (2026)