To use , you must first extract the archive to access the NSP (Nintendo Submission Package) files, which are the standard format for installing software on the Nintendo Switch or its emulators. 1. Extracting the Files
Once extracted, you can install the NSPs using various tools depending on your setup: Easily Add Updates & DLC To Nintendo Switch Games - Windows PowerWash Simulator [2DLC][US] NSP.rar
How to Install NSP Files from SD card to the Nintendo Switch using Tinfoil!!! To use , you must first extract the