I have a excel file hosted on sharepoint. I need to co-author with multiple other users using the desktop application (NOT browser). Is there anyway to be able to share the file without having to send them a link? I need it to be where if someone opens it, another user can open it and make changes/merge like how it is on the browser. Is there a setting on sharepoint/excel server that can be changed to allow sharing without having to send link? I need users to be able to open the file without needing to have a link but merge changes in real time as needed.