NSP (Nintendo Submission Package - standard format for installation on hacked/custom firmware Switches)
Extract the .rar file using a tool like WinRAR or 7-Zip on a PC. TOREGNTRAIL-(USA)-NSwTcH-NSP-Update103-Ziperto.rar
This is a compressed RAR file containing the base game (often bundled with the update in these releases) of "Torrent Trail" designed to be installed on a Nintendo Switch running Custom Firmware (CFW) like Atmosphere. NSP (Nintendo Submission Package - standard format for