Contacts: Export back to Excel
I definitely miss the option to re-export the contacts to an excel file. Once you imported them and contacts were added and or deleted, you want to be able to export these changes to a new excel file for further editing.
If if you can re-export the contacts, then there is basically no need to save the last edited file in a safe place with a correct version attached.
This is to this day the biggest challenge for the contact app, who saves the file where, which is the most recent version AND what is the correct file name so that we don't create two phonebooks resulting in duplicate contacts.