glnz said:
Kari - Toivottavasti sinä, perheesi ja ystäväsi voit hyvin.
Thanks for that nice greeting in my native Finnish, and my apologies for a delayed reply

All users of a device can use Office once it has been installed and activated, regardless which user has activated it. For instance, when user A has activated the Office, users B and C can use it simply by signing in to their Office (MS) account.

On your daughter's computer, create a user account for yourself, sign in to it, and start any Office application. When started first time, you will see this:

Office 365 subscriptions - On how many devices can Office be installed-sign-o365.jpg

You will be asked to enter your O365 / MS365 subsciption email account and sign in:

Office 365 subscriptions - On how many devices can Office be installed-activate-o365.jpg

You and your daughter are now using the same Office installation. Both of you will see your respective Office (MS) account in account info:

Office 365 subscriptions - On how many devices can Office be installed-o365-account-info.jpg

That's it.

Kari