Net Work Days in Access

In Excel, I frequently use the formula, Networkdays, to calculate the number of business days that it has taken someone to process an order. I was wondering if there is a way to do the same thing in Access? I have a Project Received Date field and a Project Released Date field. I would like to calculate the business days between these two dates (please note, some of them may cross years (i.e. the project was received 12/28/2011 and released 1/5/2012). Is this possible, or should I stick to doing the calculation in Excel

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