Large Switch games are often 14GB or bigger. To make them easier to upload and download, they are often split into smaller "parts" using WinRAR or 7-Zip. You need all the parts (part1, part2, etc.) in the same folder to extract the single usable game file [1, 5]. 2. Usage and Requirements
Users typically install these via tools like Tinfoil or DBI [4]. Xenoblade Chronicles 3 (NSP)(Converted).part1.rar
This stands for "Nintendo Submission Package." It is the standard digital file format used for Nintendo Switch eShop games [1, 4]. Large Switch games are often 14GB or bigger