The Witcher 3 Wild Hunt (nsp)(us)(expansion Hea... Here

: If you've already beaten the base game, you can start the expansion within a New Game + save, though enemies will be significantly higher level. Expansion Highlights & New Features

You can access Hearts of Stone in three ways, depending on your current progress: The Witcher 3 Wild Hunt (NSP)(US)(Expansion Hea...

The file naming format you're referring to, , typically indicates a digital Nintendo Switch package for the first major expansion, Hearts of Stone . If you are looking to dive into this content, How to Start the Expansion : If you've already beaten the base game,