Instead of storing the ExcelData Class in 2 static pages, I've exported it to an LSS file. You can find it over in the Latest Downloads section. I've added some more functionality to it and hopefully it'll be useful to someone other than myself. There is some funkyness in the constructor for determining the filename being used, but it does work. I've also included some documentation on the class that was created using Mindjet Mindmanager 5.0.
I know this is a pretty lame SnTT but, it's been awhile since I posted one and figured it was time I posted something. 
Keith