Choose > Extract Here (or "Extract to..." to pick a specific folder).
The program will automatically detect Part 002, 003, etc., and combine them into the original content. Troubleshooting She.7z.003
The file extension indicates that this is the third part of a "split archive" created using 7-Zip . This happens when a single large file is broken into smaller pieces (volumes) for easier sharing or storage. Choose > Extract Here (or "Extract to