OneDrive - To know who is editing same document

You can tell OneDrive how to handle sync conflicts if they ever occur:

1.           Right-click the blue OneDrive - <your company> cloud icon    in your taskbar notification area, and then select Settings.
            
             (You might need to click the Show hidden icons arrow next to the notification area to see the OneDrive icon.)
                     
2.               Select the Office tab.
            
                     
3.                 To stop using Office 2016 to sync Office files, clear the Use Office 2016 to sync files that I have open check box.