A Microsoft file hosting and synchronization service.
Hi! The invitation to use the Microsoft 365 Family subscription will only allow your wife to use the Office apps without license limitations. However, it will not automatically make the same files available to both of you unless you are using the same account.
To work with the same files from different accounts, you would need to share each file individually or create a folder in OneDrive and share that folder with your wife’s account.
You can follow the steps here:
https://support.microsoft.com/onedrive/share-files-and-folders-in-microsoft-onedrive