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.

: The file format used for installing games on a console with custom firmware. GARBAGPKMMTQFSG-(USA)-NSwTcH-[BASE]-NSP-Ziperto...

Because the first part ("GARBAG...") is likely a , I can't tell exactly which game this is. This string appears to be a coded name