Downloading and using .nsp files for games you do not legally own is considered copyright infringement. Most communities, such as those on Reddit's SwitchPirates , provide guides specifically for users managing their own legally dumped backups.
: This indicates the file is compressed. You will need a tool like WinRAR or 7-Zip to extract the actual .nsp file inside. 2. Usage and Compatibility These files are generally used in two ways: Unmatched [010093401939A000][v0][US].nsp.rar
If you are looking to use this specific file, the general workflow involves: Downloading and using