Returns the date of the last weekday (Monday through Friday) of the month specified by the
EWOMONTH("3/15/2020", 3) returns
EWOMONTH("2/1/2020", 0) returns
EWOMONTH(TODAY(), 1) returns the last weekday of next month.
EWOMONTH(TODAY(), -1) returns the last weekday of last month.
Number): A number of months to add to or subtract from
whenbefore computing the last day of the month. For instance,
0would find the end of the month specified by
1would find it for the month after
-1would find it for the month prior to