Nice, Excel really is one of the most undervalued pieces of software, it has so many details like this and it handles almost anything you throw at it. Pivot table is another of the lesser known features that is hard to live without once you've found out that it exists.
Given that Excel runs many, if not most financial organizations at a practical level, I'm not sure that it's undervalued in practice.
Excel is to finance people as terminals are to developers. When getting bug reports from end users, we've even had them delivered to us as screenshots embedded in Excel files.
