The file you referenced is a compressed archive containing a Nintendo Switch update for . The filename identifies it as an NSP (Nintendo Submission Package) file, which is a standard format for digital Switch software, updates, and DLC.
To use this file, you must first extract the contents of the .rar archive using a utility like 7-Zip or WinRAR. 💻 Installing on an Emulator DEMSLAY-KNY-THC-NSwTcH-NSP-Update101-Ziperto.rar
Right-click the game in your list and select "Install NSP" . The file you referenced is a compressed archive
Right-click the game and check Properties to ensure the version number (e.g., v1.0.1) matches your file. 🎮 Installing on a Modded Console and DLC. To use this file