Based on the file naming convention, is the first part of a split 7-Zip compressed archive .
The exact contents are unknown without extracting the file. It could contain anything, such as a dataset, game files, documents, or media. SS-Nin-030_s.7z.001
You must use 7-Zip or WinRAR to open the first file (.001) and extract the entire content. Based on the file naming convention, is the