Never knew of mmult. Will try to look at that technique to simplify the formula. Aside from that, another user posted excel campus example of filter function.

Never knew of mmult. Will try to look at that technique to simplify the formula. Aside from that, another user posted excel campus example of filter function. That also returns an array. And pretty much does what I need. However, it is only for office 365 insider and not to be released anytime soon.