I have a column with open date (B), column with closed date (C), column with
count of days opened (D).
I need to calculate the average number of days each were opened in the 1st,
2nd, 3rd and 4th quarter of the fiscal year as well as the entire fiscal year.
I have been physicallly typing in each cell reference that has an opening
date int he first quarter, but would like to be able to say SUM COLUMN D ONLY
IF COLUMN B "=10/01/2004" also "<=12/31/2004".
THEN COUNTIF COLUMN B ONLY IF "=10/01/2004" ALSO "<=12/31/2004"