: A WinRAR archive. Files of this size are often split into multiple "parts" (part1, part2, etc.). You must download all parts and keep them in the same folder to extract the final .nsp file. Usage and Requirements
: Downloading files from sites like Ziperto typically violates Nintendo's terms of service and copyright laws. OPU-WR-DE-NSwTcH-[BASE]-NSP-Ziperto.part1.rar
How to Install NSP Files from SD card to the Nintendo Switch using Tinfoil!!! : A WinRAR archive
: Stands for Nintendo Submission Package . These are digital game files similar to what you would download from the Nintendo eShop . OPU-WR-DE-NSwTcH-[BASE]-NSP-Ziperto.part1.rar
: Indicates this is the core game file required for play, as opposed to an update or DLC.