Microsoft Office 365 2019/2021, Office Deployment Tool (ODT)
1.Download the Office Deployment Tool from the Microsoft Download Centre
The installation files for Install Office with office deployment tool 2021 is available on the Office Content Delivery Network (CDN) on the internet
You can install Office 2021 directly from the Office CDN. Also you can download the installation files from the Office CDN to a location on your local network.