If you need a stable, static version of Office that doesn't change features every month and works completely offline, hunt for a legitimate license key and use Microsoft's official ODT to build your own offline installer.
Microsoft’s servers will now download the full 3.5-4GB installer locally. You will see no progress bar—monitor your network activity via Task Manager. When complete, the command prompt returns to a blinking cursor.
However, downloading the for Office 2019 Pro Plus is not as straightforward as a simple Google search. Microsoft pushes its "Click-to-Run" streaming installer by default, which requires a constant internet connection during installation. This article provides a deep dive into why you need the offline version, how to legally obtain it, step-by-step installation instructions, and troubleshooting tips.
from the official Microsoft site .
