excel. put ' ' around every item in a column

[DKasler]

Hey... Im TOTALLY New to VBA, but I have an xls and i need to put all the items in a column in ' '

so i need to make coulmn D go from

a
b
c
d

TO:

'a'
'b'
'c'
'd'

There are over 700 rows in the sheet, otherwise id do it by hand. Any suggestions?