Nino-knirk-pe-nswtch-[base]-nsp-ziperto.part1.rar Here

Because this is labeled "part1", you will need all subsequent parts (part2, part3, etc.) located on the same site to extract the file correctly.

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.

These files are generally used for installation on custom firmware (CFW) Nintendo Switch consoles or for emulation using software like Yuzu or Ryujinx.