If you have confirmed this specific file is compatible with your device, the standard installation steps for Superboot are as follows: :

The file is a modified rooting tool typically used for specific Android devices. MoDaCo Superboot is a "one-click" rooting solution that uses a pre-patched boot.img to provide root access (installing su and the Superuser APK) upon the first boot without needing to flash partitions or manually use ADB commands. Important Precautions

For the most up-to-date and safer rooting alternatives, many users now prefer Magisk, which allows for "systemless" root and is compatible with modern Android versions.