If you are writing a VSTO customization - make sure you aware of this performance tip courtesy of Steve Peters - developer on the VSTO team. This tip allows to prevent VSTO runtime from reflecting on your entry point assembly. We see considerable startup...

Excel 2010 has a new feature called Slicers and a bunch of new methods and objects associated with slicers (I actually am not an expert on Slicers themselves and still need to understand what they are for and how they operate but this leads me to my next...