start_date,end_date,weekend,holidays!Returns the number of whole workdays between two dates with custom weekend parameters!is ...

!start_date,end_date,weekend,holidays!!Returns the number of whole workdays between two dates with custom weekend parameters!is a serial date number that represents the start date!is a serial date number that represents the end date!is a number or string specifying when weekends occur!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!