Date functions in Excel make it is possible to perform date calculations, like addition or subtraction, resulting in automated or semi-automated worksheets. When you mix date functions with conditional formatting, you can create spreadsheets that display date alerts automatically when a deadline is near or differentiate between types of days, like weekends and weekdays.
In this tutorial, Excel MVP Frédéric Le Guen shows how to put this functionality to work, with some examples in the Excel Web App so you can experiment with the results.
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