Indicates this is the base game file, not an update or DLC.
Use software like WinRAR or 7-Zip to extract the contents. You only need to extract part1 , and it will automatically pull from the other parts. NINO-KNIRK-PE-NSwTcH-[BASE]-NSP-Ziperto.part1.rar
Based on the naming convention, NINO-KNIRK-PE-NSwTcH-[BASE]-NSP-Ziperto.part1.rar refers to a split archive file for a Nintendo Switch game (NSP format) distributed via the website Ziperto. Indicates this is the base game file, not an update or DLC
Ensure you have sufficient storage space and the required tools to manage multi-part RAR files. NINO-KNIRK-PE-NSwTcH-[BASE]-NSP-Ziperto.part1.rar