Count the # of unique items in a column, excluding blanks

Excel Formula to count the # of unique items in a column, excluding blanks

 

=SUMPRODUCT((B21:B1421<>"")*(1/COUNTIF(B21:B1421,B21:B1421 &"")))

Excel "IF~OR~AND" Formula

Excel Formula to check if B1 or C1 or D1 contain a value of "1" AND if the E1 = "1".  If TRUE, then A1 = "1", otherwise, A1 = "0".

Place the following formula in cell A1:

=IF(AND(OR($B$1=1,$C$1=1,$D$1=1),$E$1=1),1,0)