It looks like you have the first segment of a multi-part compressed archive for on the Nintendo Switch. This specific file name indicates it is the NSP format (Nintendo Submission Package) and includes Update 1.0.17 .
: Use a tool like WinRAR or 7-Zip . Right-click the first part ( .part1.rar ) and select "Extract Here." This will automatically pull data from all other parts to recreate the single, full .nsp file. MLB The Show 22 (NSP)(Update 1.0.17).part1.rar
To successfully use this file, you generally need to follow these steps based on common practices found on community forums like r/SwitchPirates : It looks like you have the first segment
