It looks like you’re referencing a file name for Unicorn Overlord — specifically an .rar archive that appears to contain an NSP (Nintendo Switch digital title) and an update (Update 1.05).
Unicorn Overlord -NSP--Update 1.05-.rar is a compressed archive containing a digital update for the tactical role-playing game Unicorn Overlord on the Nintendo Switch. This specific version, Update 1.05 Unicorn Overlord -NSP--Update 1.05-.rar
This is the standard file format for digital content on the platform. Installation: It looks like you’re referencing a file name
If you own Unicorn Overlord legally, the safest and easiest way to get Update 1.05 is through the official Nintendo eShop or your console’s built-in update feature. For everyone else — whether modding, emulating, or preserving — handle the .rar file responsibly, and you’ll enjoy a smoother journey through the kingdom of Fevrith. Unicorn Overlord -NSP--Update 1.05-.rar