.NSP (Nintendo Switch Package) is the standard format used for eShop titles and updates.
You can purchase and download the digital version directly from the Nintendo eShop for approximately $14.99.
The ID 01005D30176A0000 specifically corresponds to the US version of Formula Retro Racing . Size: The base game file is approximately 525 MB. Common Installation Tools
If you are managing backups of your legally owned software on a modified console, here is the technical context for the file format you mentioned.
Formula Retro Racing for the Nintendo Switch is a modern tribute to 90s-style arcade racers like Virtua Racing , featuring low-poly graphics and high-speed checkpoint gameplay. Official Installation Methods