I have some formulas at http://www.cpearson.com/Excel/BetterNetWorkDays.aspx that show how to
get the number of days between two dates, excluding any number of days
of the week and specified holidays. It is a replacement for the
NETWORKDAYS function, in which Saturday and Sunday are hard wired in
the function.
Cordially,
Chip Pearson
Microsoft Most Valuable Professional,
Excel, 1998 - 2010
Pearson Software Consulting, LLC www.cpearson.com