How Excel's INDEX and XMATCH Functions Work Before we look at how these two functions can be used together in one formula, let's take a moment to explore how they work in isolation.

How to compare columns in Microsoft Excel As stated, we can use the Excel VLOOKUP function to find and match different data or find differences in two columns.

Creating a list of duplicate values that’s separate from the data source is easier than ever thanks to Microsoft Excel's FILTER() function.