: Indicates this is the core game file required for play, not an update or DLC.
: Right-click on part1 and select "Extract Here" using a tool like WinRAR or 7-Zip . ASE-NSwTcH-[BASE]-NSP-(eShop)-Ziperto.part1.rar
: Alternatively, you can use the file on PC emulators such as Ryujinx. Troubleshooting : Indicates this is the core game file