Always scan downloaded .rar files with reputable antivirus software before extraction.
Use the (File Browser Installer) application on your 3DS to navigate to the file and select "Install and delete CIA" . For Citra Emulator: Open the Citra Emulator on your PC. EON-USA-CIA-V2-Ziperto.rar
Indicates this is a second version of the upload, often including the latest v1.1 update or bundled DLC . Always scan downloaded