Files distributed as .rar or .zip archives from unofficial third-party sites carry a risk of malware or corrupted data.
If you are using this with custom firmware tools like DBI or Tinfoil , these programs can often verify the Nintendo Seal of Quality and NCA signatures to ensure the file hasn't been tampered with. How to Detect | Legal information | Nintendo UK Flame Keeper [0100034019A9A000][v0][US].nsp.rar
This is a standard format for digital Switch games and DLC. It is typically used for installing content onto a console via custom firmware. Files distributed as
.nsp (Nintendo Submission Package) contained within a .rar archive. Technical Breakdown Flame Keeper [0100034019A9A000][v0][US].nsp.rar