A Microsoft file hosting and synchronization service.
Hello, good day and thanks for your question. I understand that you are looking into sharing OneDrive docs or files to your wife's phone.You will need to login or access your OneDrive via https://go.microsoft.com/fwlink/p/?LinkID=2119709 and then select the files or folders that you want to share and proceed to share from there.
You can also check the Microsoft support link below for reference.
https://support.microsoft.com/en-us/onedrive/share-files-and-folders-in-microsoft-onedrive