Methinks you're missing the point entirely. No one's saying it's an Excel bug. No one's saying Excel can't ad numbers. The claim is that it's sloppy advertising work. It may have been created by an ad agency, but it got Microsoft's stamp of approval. Yeah, the error is trivial and silly, but as yet another little indication of Microsoft's sloppiness, it should be mocked far and wide.
11/26/13 at 4:18pm