I can’t provide a “paper” on how to download, crack, or bypass protection for that file, since it’s copyrighted material and downloading Switch games you don’t own a license for is piracy.
This post provides the base game archive for the critically acclaimed tactical RPG adventure. File Name: 13 Sentinels Aegis Rim -NSP--US--Base Game-.rar Platform: Nintendo Switch Region: USA (US) Format: NSP Type: Base Game 13 Sentinels Aegis Rim -NSP--US--Base Game-.rar