Please forgive my original post,mislaid my glasses so spelling was atrocious.
I turned on Auto Date in Word 2016/Office 365,which worked as i expected current date automatically added to new documents.
However the problem i have is that the auto date also changes the date on old documents to the current date.
How can i stop this from happening. I have of course unchecked the Auto Date box but this makes no difference at all..

All ideas welcome thank you.