To help you further, do you have the other parts of this archive (like .002 , .003 ) in the same folder? How to Extract .7z.001 files - Microsoft Q&A
To view or extract the contents, you need all parts of the archive (e.g., 001, 002, ...) in the same folder. SS-Nin-030_s.7z.001
Based on the file naming convention, is the first part of a split 7-Zip compressed archive . To help you further, do you have the