: You will need a modded Nintendo Switch running Custom Firmware (CFW) like Atmosphere.
This file appears to be a compressed archive containing for a specific game, likely distributed via Ziperto. Breakdown of the Filename: MFLD-NSwTcH-NSP-[5DLCPack]-Ziperto.rar
: Indicates that this archive contains five separate pieces of DLC. : You will need a modded Nintendo Switch