With your date in Cell A1 in B1 enter
=CHOOSE(WEEKDAY(A1,2),"M","T","W","Th","F")
and copy down


"BillG" wrote:

When formatting a date, I would like to display only the first letter
of the weekday. For example, 9/1/08 (39692) would display as "M". I
know format "ddd" will display "Mon", but I'd like to have *only* the
first letter.... Any ideas?

I am using Excel 2007.

Thank you!