FD 9 vs FD 11

I was working in CS 55 this morning and I wondered how my browser (IE7) and Excel (2007) would handle a horizontal tab (FD 9) vs a vertical tab (FD 11). If you're not familiar with FD, FD is the Footnote Attribute used to Delimit Fields in your NPR Downloads.

FD 9: "SOME.DATA" "10/08/07"

FD 11: "SOME.DATA""09/27/07"

Here's the observable difference in MS Excel 2007:

That clears it up, I'll be using FD 9, the horizontal tab to delimit this NPR Download.