Is it possible to change tab names dynamicaly ? For example i have 31 tab (1
for each day of the month)

These tabs are named - 1,2,3 e.t.c
Is it possible to define rule that would ad "!" to day which is weekend day.

In other words is it possible to dynamicly change tab name depending from
value of cell ?

If this is possbile how do i do this ?