Extract the .nsp file from the .rar archive on a PC.
This hexadecimal string is how the Switch operating system identifies the game software. SD Valis [01000C001901E000][v0][JP].nsp.rar
This is a digital dump of the game, equivalent to a physical cartridge. It contains the game ROM, icons, and metadata. Extract the
SD Valis (also known as Syd of Valis in some regions). Platform: Nintendo Switch. Version: v0 (Base game). Region: JP (Japan). Format: NSP (Nintendo Submission Package) . Technical Breakdown of the File It contains the game ROM, icons, and metadata
Use a homebrew tool like DBI or Goldleaf to transfer the file to the console via USB or SD card.
This is a compressed container. You must use software like 7-Zip or WinRAR to extract the actual .nsp file before it can be used. Usage and Installation