每日网摘 08/03/2008
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11. Find total working days between any two dates, including holidays

If you work on project plans, gantt charts alot, this can be totally handy. Just type
=networkdays(start date, end date, list of holidays)to fetch the number of working days. In the above sample you can see the number of working days between New years day and September first of this year (labor day).
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