These Excel University courses will teach you the app's most powerful features for $30

Microsoft Excel is one of those programs everyone has used at one time or another. In fact, 750 million people, almost 10 percent of the global population, has noodled around with Excel's spreadsheets, cells, and pivot tables before.

But while 750 million people may have engaged with Excel, that doesn't mean 750 million people are interacting with it as a key tool in their daily workflow like accountants or finance experts would. — Read the rest