It looks like you’re searching for a Spiritfarer game file (likely an NSP update) from a 2021 release named 115.rar.
.rar files with scene-style naming.Nintendo Switch: Highlight the Spiritfarer icon on your home screen, press the + button, select Software Update, and then Via the Internet. spiritfarer nspupdate 115rar 2021
The string "spiritfarer nspupdate 115rar 2021" appears to be a search query for a pirated or unofficial update file for the Nintendo Switch version of Spiritfarer. It looks like you’re searching for a Spiritfarer
I can:
Detailed Patch Notes
The version you might be looking for (often referred to as Ver. 1.13.0 on Switch) was the final major update of 2021: It likely refers to a pirated Nintendo Switch