I want to get an average on some 50 cells , excel only allows me to put in 30. how do i change the arguments to be more than 30. here is how i am doing the average.
=AVERAGE(C12,C18,C33,C39,C45,C54,C60,C66,C75,C81,C87,C96,C102,C108,C117,C123,C129,C138,C145,C151,C166,C172,C181,C187,C193,C202,C208,C214,C222,C229)

can i add a +(C299, C400) or how can i do it.
brent