This refers to Ziperto , a well-known website that hosts databases and links for console ROMs and updates.
Based on the file naming convention, this is a compressed archive typically found in digital preservation or file-sharing communities. A-(RF)-NSWTCH-NSP-ZIPERTO.part1.rar
Often indicates "All Regions" or "Region Free," meaning the software isn't locked to a specific geographical territory. This refers to Ziperto , a well-known website
This is the file extension for Nintendo Switch Submission Packages, which is the format used for digital titles on the console. This refers to Ziperto