Part 2 of a multi-part RAR archive. You will need all parts (e.g., part1.rar, part2.rar) in the same folder to successfully extract the full .nsp file.
Likely Super Princess Peach (SPM) or a similar title, possibly relating to a "Retro" (RF) release or "Region Free" version. Platform: Nintendo Switch (NSWTCH). SPM-_RF_-NSWTCH-NSP-ZIPERTO.part2.rar
Typically stands for the game title (e.g., Super Paper Mario or Super Princess Peach ). Part 2 of a multi-part RAR archive