start_date,end_date,holidays!Returns the number of whole workdays between two dates!is a serial date number that represents ...

!start_date,end_date,holidays!!Returns the number of whole workdays between two dates!is a serial date number that represents the start date!is a serial date number that represents the end date!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!