Money in Excel, how to completely start over?

Hi!

I connected an account from my bank and then found out that I can connect only one account from each bank. Knowing that, I want to start over because if I can track only one account I'd rather track a different account that I have with that same bank, rather than the one I initially connected.

How do I completely unassociate the account that I connected so that I can connect a different account that I have with the same institution?

Thank you so much!