Garbagpkmmtqfsg-(usa)-nswtch-[base]-nsp-ziperto...

This string appears to be a coded name for a digital backup, where: : Indicates the region of the game. NSwTcH : A common scene tag for the Nintendo Switch. [BASE] : Refers to the base game without updates or DLC.

Because the first part ("GARBAG...") is likely a , I can't tell exactly which game this is.

: The name of the hosting site where this file was likely listed.

It looks like you've provided a specific or release tag for a Nintendo Switch game file (likely an "NSP" or "NSZ" format), often found on sites like Ziperto .

: The file format used for installing games on a console with custom firmware.