BUSDAYSADD

BUSDAYSADD(dtDateValue, iNoOfDays)
Returns the date after adding or removing a number of business days to or from a date.

REMARKS
* You can use the built-in WORKDAY.INTL function to return the date serial number that is a given number of working days before or after a date.
* You can use the user defined BUSDAYNEXT function to
* You can use the user defined BUSDAYPREVIOUS function to
* You can use the user defined BUSDAYMONTHSTART function to
* You can use the user defined BUSDAYMONTHEND function to
* You can use the user defined BUSDAYYEARSTART function to
* You can use the user defined BUSDAYYEAREND function to
* You can use the user defined BUSDAYNTH function to
* You can use the user defined BUSDAYDIFF function to

Public Function BUSDAYSADD( _ 
         ByVal dtDateValue As Date, _ 
         ByVal iNoOfDays As Integer) _ 
         As Date 

   BUSDAYSADD = Application.WorksheetFunction.WorkDay_Intl(dtDateValue, iNoOfDays) 
End Function 

For instructions on how to add this function to a workbook refer to the page under Inserting Functions