You're looking for information on Yoshi's Crafted World for the Nintendo Switch, specifically an NSP update link. Here's what I have:
Conclusion
NSP stands for Nintendo Switch Package, which is a file format used to distribute games and other content on the Nintendo Switch console. NSP files contain the game's data, including the executable code, graphics, and sound effects. NSP files can be used to install games on the Switch console, either through the Nintendo eShop or through third-party sources. yoshis crafted world switch nsp update link