Here’s a concise, interesting report on the file , written from a technical and gaming culture perspective. Report: Unpacking the Mysterious “Disney Dreamlight Valley -NSP--Update 1.14.3-.rar” 1. What This File Actually Is The filename indicates this is a Nintendo Switch package (NSP) update for Disney Dreamlight Valley , version 1.14.3 , compressed using RAR archiving. NSP files are normally encrypted, signed Nintendo distribution formats. An .nsp inside a .rar suggests it’s not from the official eShop , but rather a scene or warez release intended for use with hacked/CFW Switches or emulators (Ryujinx, Yuzu).