You would need SS-Vio-015_v.7z.001 , .002 , and so on, in the same folder.
If a download fails, it is easier to re-download a single 500MB segment than a single 50GB file. How to Use This File SS-Vio-015_v.7z.003
This indicates the file was created using 7-Zip , an open-source Lempel–Ziv–Markov chain algorithm (LZMA) archiver. 7-Zip is favored for its high compression ratio, often outperforming ZIP and RAR formats. You would need SS-Vio-015_v