An NSP file is essentially a archive (similar to a ZIP file but structurally distinct) containing multiple distinct partitions:

This paper analyzes the technical structure and preservation context of the Nintendo Switch eShop file format (NSP) specifically regarding Luigi’s Mansion 2 HD . This document is for educational and archival purposes only. It does not provide links to copyrighted material nor does it encourage piracy. Nintendo’s intellectual property is protected by law.

The primary "useful" context for understanding NSP files outside of direct consumption is .

The transition from handheld to hybrid console introduces several technical and quality-of-life improvements: