What is the formula to convert a whole column of date to text?

If I am to do it cell by cell, I need to press F2 then put a -- ' in
front of the date.

Is there a way I can do it with formula? I have tried CONCATENATE to
combine column a which contains ' with date 12/31/03.

Column A Column B
' 12/31/03 =CONCATENATE(A1,B1)

However, the end result I got is as follow.

'37986

instead of

'12/31/03

Please help!