Returns the number of whole workdays between two dates.
| Name | Type | Description |
| arg1 | any | Is a serial date number that represents the start date. |
| arg2 | any | Is a serial date number that represents the end date. |
| arg3 | any | Is an optional set of one or more serial date numbers to exclude from the working calendar, such as state and federal holidays and floating holidays. |
builder.CreateFile("xlsx");
const oWorksheet = Api.GetActiveSheet();
var oFunction = Api.GetWorksheetFunction();
var ans = oFunction.NETWORKDAYS("3/16/2018", "12/31/2018");
oWorksheet.GetRange("C1").SetValue(ans);
builder.SaveFile("xlsx", "NETWORKDAYS.xlsx");
builder.CloseFile();