Hi,
I have a spreadsheet where cell C6 requires the user to enter a date, I
currently have a custom validation in the cell of the following:-

=WEEKDAY(C6,2)<=5

This displays an error message if a non-working day (i.e. a Saturday or
Sunday) is entered in the cell. Is there anyway I could get this to work if
the user also enters a bank holiday date.

Regards, Glenn