If you already own a license for Office 2016, you can safely download and reinstall it through official channels: Official Re-installation Steps
Downloading software through unsanctioned torrents like "Microsoft Office 2016 Pro Plus {Gen2}" is highly discouraged due to legal and security risks. These "cracked" versions often bypass security measures and may contain that can compromise your personal data. Additionally, downloading copyrighted software without a license is illegal in many countries. If you already own a license for Office