John,

Use the NETWORKDAYS to determine the number of weekdays between two dates.


--
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com


"John Flynn" wrote in message
...
I am using Days360 function within Excel to extract the
number of days that an item is open. However, the purist
in me would like to exclude weekends and holidays so that
we have a true workdays open calculation.

Thanks