The software will automatically pull data from part2.rar to create one complete file.
The file you have is part of a split archive. You cannot extract "part2" on its own; you must have (e.g., part1 and part2) in the same folder to proceed. RT-F2-NSwTcH-[BASE]-NSP-(eShop)-Ziperto.part2.rar
Choose "Extract Here" or "Extract to [Folder Name]" using software like WinRAR or 7-Zip . The software will automatically pull data from part2
Right-click ONLY on the first part ( ...part1.rar ). you must have (e.g.
Once extracted, you will have a single file. This is a digital game format for the Nintendo Switch.