Excel used to be the poor schmuck’s database, with spreadsheets that just sort of sat there. You could create something more sophisticated with LOOKUP functions, but they were a huge hassle to set up.

Microsoft Excel 2010 comes with an expansion pack called the Analysis ToolPak that includes a number of analylitical tools, like the ability to create a liner regression table. Even though the ToolPak ...

Have you ever carefully crafted a formula in Excel, only to watch it unravel into chaos the moment you copy it across columns? It’s a maddening quirk of Excel tables—structured references that seem to ...