Excel and Access are probably the most frequently ignored office applications I use. Sure, I've used them for school intermittently throughout the years. While I've always been impressed with what Excel does (calculating thousands of statistical operations in a fraction of a second), I've often found using it is an exercise in boredom and patience.
Excel 2007 looks amazing...completely amazing and far more intuitive than ever before. I'm actually excited just to try it, something I've never been excited about before. Great segment. Office 2007 can't come out soon enough.