Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Dear Rome,
Thanks for your updates.
If you are using Office for Windows, may I know whether you set your work or school account ******@contoso.com as the default account in your Office applications? If no, click on Switch account in the Office applications to set it as the default account as follows.
After you do that, you should be able to open the files from Office for the web with the Office applications directly at your side.
Welcome to share any updates at your convenience.
Thank you for your effort and time.
Sincerely
Cliff | Microsoft Community Moderator