The file you've mentioned, , is one part of a multi-volume RAR archive containing a digital copy of Pokémon Scarlet for the Nintendo Switch.
: Running custom firmware (CFW) like Atmosphere. You would use an installer like Tinfoil or DBI to put the game on your console. Pokemon Scarlet [0100A3D008C5C000][NSP].part03.rar
To use this file, you must treat it as part of a set rather than a standalone file. Here is how to handle it: 1. Collect All Parts The file you've mentioned, , is one part