On Tue, 14 Apr 2009 11:23:01 -0700, Hile
wrote:

Thank you so much. Can I use a range of columns if I want to apply this
format to more than 1 column on the sheet? If so, do I enclose in () and
separate with commas?
--
Hile

In addition to Gord's suggestion, you might consider using a drop-down list
referencing a list of valid state abbreviations, instead of just allowing any
two letter string.
--ron