Ss-nin-030_s.7z.001 -

7zip file with numbers on it like 001 means that you only have a part file of the whole compressed file. Microsoft Learn How to Open and Extract .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.

The file indicates that a larger dataset, software, or collection of files (possibly named "SS-Nin-030_s") was broken into smaller, numbered parts (e.g., .001, .002, etc.) to make downloading or transferring easier. SS-Nin-030_s.7z.001

Do not attempt to open only the first part, as it will likely appear empty or corrupted.

Based on the file naming convention, is the first part of a split 7-Zip compressed archive . 7zip file with numbers on it like 001

You must use 7-Zip or WinRAR to open the first file (.001) and extract the entire content.

The exact contents are unknown without extracting the file. It could contain anything, such as a dataset, game files, documents, or media. Do not attempt to open only the first

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