Install Java on your PC and download the NS USB Loader tool.
: Use WinRAR, 7-Zip, or similar software to extract the contents of NSS ][v0][US].nsp.rar to a folder on your PC.
: Indicates this is base game version 0 (initial release) for the American region. 2. Pre-installation Steps (PC) Before trying to install, you must prepare the file: NSS ][v0][US].nsp.rar
: Ensure the resulting file is named something.nsp (e.g., NSS_US.nsp ). If the extraction results in multiple files (like an executable nss.exe ), the source may not be a standard Switch game dump.
: If extraction fails, the .rar file is corrupted. Re-download. Install Java on your PC and download the NS USB Loader tool
: The uncompressed file is a Nintendo Submission Package, which holds the game, update, or DLC.
Which are you using on your Switch (e.g., Tinfoil, DBI, Goldleaf)? Are you getting a specific error message ? : If extraction fails, the
: Choose your installation method. USB transfer via NS USB Loader is the recommended, faster method. 3. Installing on a Modified Switch