Excel offers several easy ways to calculate expiry dates based on days, months, or business rules. In this post, we’ll explore different ways to automate expiry date calculations in Excel.

You should have experience with Excel before trying to use formulas to calculate what day of the week the 15th of a given month is, and you have several options to do this.

In Excel, there are two ways of calculating the weighted average with percentages: using the SUM function and using the SUMPRODUCT function. Let us have a look at these 2 methods in detail.

One of the many features of Excel is being nosy. That's right, you can quickly calculate a persons age as long as you have their birth date.

Learn how to calculate moving averages in Excel using dynamic arrays. Simplify rolling totals with custom functions for efficient analysis.

Writing Excel formulas isn't easy if you don't speak the language. Fortunately, at least two sites will translate your request, in English, into Excel code.