Link your Microsoft Teams email to Google by going to this link, filling out your name and other info, and when it asks for an email address, type in your Microsoft Teams email:
Note: If you get an error saying the username is already being used, you can skip to Step 2.
Finish the Google account setup (email verification, password, phone number verification) until complete.
Open Google Chrome and create a new Chrome Profile. Put in your Microsoft Teams email. Enter your password. We recommend choosing "Turn on Sync" when prompted so you can bookmark pages, etc.
Go to sheets.google.com and open a blank Google Sheet
Click on Extentions -> Add-ons -> Get add-ons
Search for "Visata for Rent Manager" and install the add-on
That's it! You can now access the add-on in that spreadsheet or any spreadsheet by going to Extensions -> Visata for Rent Manager -> Open sidebar
Note: Feel free to check out a quick walk-through video of how to use the add-on here.