That was pretty interesting actually, I had a comment all typed out for what I thought, then dropped it off. At first I thought it was just going to be getting one number from one spreadsheet into another sheet, like =April.H33, it was a lot more than that. I am still very basic knowledge wise when it comes to spreadsheets, but since I have been tracking my progress I keep looking for and find things that help.
I'm not into data at all yet but that did look like a nice tool for sorting/organizing data.
RE: Excel's odd but useful - Indirect Function