Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

I once made money moonlighting as a VisiCalc and Lotus 1-2-3 instructor before Steve Ballmer ever typed “=sum(Profits)” in an Excel 1.0 spreadsheet cell. And a friend and former colleague from my ...

This morning, Microsoft opened the tech preview of its long-anticipated Office Web Apps. Here’s a first look at what the online version of Excel has in store. From the online SkyDrive folders, you can ...