After opening the file you downloaded, after a brief download it'll present you with this screen. Please log in with your district email and password:

When it finishes installing, you'll see this screen:

Click close to proceed.

You'll see this window pop up shortly:

Click on the right arrow on that pop-up to go through the presentation, or you can click on the X on the top right to close this window.

This installed a Google Drive File Stream 'drive' to your system. It's typically labelled as the G: drive (unless G: is already taken on your system, in which case it'll use the next available drive letter).

Click on this link for more information:

After opening the file you downloaded, it'll present you with this screen. Please click on Continue, then click on Install: