Ken,
To further Peo's comment about merged cells. If practicle, you should use Center_across_selection under horizontal alignment instead of merging cells. Unfortunatley, excel no longer has a tool button for center_across_selection. However, if you use it frequently it is worth writing a macro and assigning it to a button.
Regards,
Mark Graesser
(e-mail address removed)
----- Peo Sjoblom wrote: -----
You can only apply 3 formats (4 obviously if no conditional format is
counted and some more if you use formatted fonts for numeric values). If you
mean that if the cell contains Month you can use
=$B$B1="Month"
or
=LEFT($B$1)="M"
also considering not using merged cells, you can almost get the same look
using other means and somewhere
down the line merged cells can cause a lot of problems