: Use a program like WinRAR , 7-Zip , or The Unarchiver (for Mac). The Process : Right-click on Part 01 (the first file in the sequence). Select "Extract Here" or "Extract to Str29/" .
: This usually means one of the parts (possibly part 10) was corrupted during download. You may need to redownload that specific part. Str29.part10.rar
: You must have every preceding part (part1 through part9) and any subsequent parts in the same folder. : Use a program like WinRAR , 7-Zip
If you can tell me or what you expect to be inside it , I can give you more specific advice on how to use it safely! : Use a program like WinRAR