Go to the Tools menu, choose Options, then the General tab.
There, uncheck the "R1C1 reference style" setting.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com


wrote in message
oups.com...
Something very strange has happened to my EXCEL documents. The
column
heads are no longer letters (A, B, C, etc) but instead they are
numbers
(1,2,3, etc). How do I get the letters back?

TIA