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
(email address is on the web site)

"kevpet" wrote in message
...
My column headings have unexpectedly changed from letters to numbers. How
can I change them back to letters? Thanks!