One other area I work in is Business Intelligence. These days BI is an important technology to an increasing number of companies. There are many great BI tools out there, one of which is (of course) Excel.
One of the things that makes Excel such a useful BI tool is its richness of functionality. It has so many existing features that can be used in the BI area - one of which is its statistical analysis functions.
I posted an article over on the Excel team blog illustrating one way we can use Excel's statistical functions to extract useful information from business data.
If you're interested in statistical analysis or BI in Excel, you may find the article interesting. Click here to view the article.