: The first part of the archive (contains the master header). .7z.002 : The second part (the file you have). .7z.003 (and so on) : Subsequent parts as needed.
You cannot open part .002 on its own. It is a "fragment" of the data and requires the previous part to reconstruct the original file. 2. Preparation Checklist SS-Nin-030_s.7z.002
: Ensure the filenames are identical except for the numbers at the very end. 3. Step-by-Step Extraction Guide : The first part of the archive (contains the master header)