======Workdays(from_date, to_date) ======
Category:  Date and Time function

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=====Description=====
This function returns the number of workdays (i.e. all days except Saturday and Sunday) between //from_date// and //to_date//. Both date boundaries are inclusive.
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=====Arguments=====
^Argument^Type^Description^
|from_date|Date or Number (date serial)|An expression representing the first date value to derive the number of workdays from.|
|to_date|Date or Number (date serial)|An expression representing the second date value to derive the number of workdays from.|

**Return value type:** Number

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=====Remarks=====
The //from_date// and //to_date// arguments can take any value or expression that evaluates to a date serial value.  Examples include:  
  * A date literal:  #2019-12-12
  * A date serial value: 43811 (the date serial for "2019-12-12")
  * A date value created using any of the Date/Time functions that returns a date serial value.

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=====Examples=====

  workdays(#2020-05-01,#2020-05-20)  //Returns 14

  workdays(#2019-01-01,#2019-12-31)  //Returns 261 (The number of workdays in a non-leap-year year.)

  workdays(#2005-12-17, #2005-12-18)  //Returns 0 (The 17th is a Sat and the 18th is a Sun.)