During my presentations, I always ask, “How many of you use Excel?” and “How many of you use Excel with SharePoint?” And the answers are always the same. A lot of people use Excel. And many of them use Excel with SharePoint by collaborating on workbooks. But there’s lots more you can do, using Excel Services. Of all the SharePoint facilities, Excel Services offers you perhaps the greatest “bang for the buck” value. Let’s start exploring Excel Services.