: Right-click only the first file (e.g., filename.01s.7z ) and select Extract Here or Extract to [folder name] . The software will automatically detect and join the subsequent parts. Key Benefits of Split Archives How to open a .7z file - Microsoft Q&A
: The "01s" denotes the first part of a sequence (followed by .02s, .03s, etc.). 01s.7z
To extract the data from an file, follow these steps: : Right-click only the first file (e