If you are looking to play the NSP file on a PC or Android device rather than a Switch:

DBI is widely considered the most reliable tool for installing NSP files directly from a PC [2].

: Requires adding a file browser source (like a "shop") or using a USB tool like Nut to transfer files from a PC [3, 15]. 3. Emulation (PC/Android)

: Place the Tinwoo.nro file in the /switch folder on your SD card [7]. Open the app, navigate to your NSP file on the SD card, and select install [7].