The file extension for Nintendo Submission Packages. These are digital game files used by the Switch console to load and play content.
To play this on a console, users typically extract the NSP file from the RAR and then transfer it using tools such as NS USB Loader or Goldleaf . HDS-RF-NSwTcH-NSP-Ziperto.rar
The origin site, a well-known repository for Nintendo Switch game backups and updates. The file extension for Nintendo Submission Packages