: High School Baseball Management Mode.
The filename you provided refers to a in NSP format, typically used for updating the game manually. Quick Guide to Installing the Update EBASBALL-PPB2022-(JPN)-NSwTcH-NSP-Update180-Zip...
: Ensure your Switch is running a custom firmware (CFW) environment like Atmosphère . File Transfer : Extract the .nsp file from the .zip archive. : High School Baseball Management Mode