Distributing, downloading, or using circumvention tools to install pirated games is illegal and violates Nintendo’s intellectual property rights [5.3].
The only legal and safe way to obtain this game is through the official Nintendo eShop on your Switch console. To help you further, could you clarify: RECALL Switch NSP (eShop)
Files downloaded from unofficial, third-party sites can contain malware or cause system instability. RECALL Switch NSP (eShop)
It is the standard format for digital games and DLC downloaded from the Nintendo eShop [5.5]. RECALL Switch NSP (eShop)