Unless someone's calculator needs an upgrade, one plus one usually adds up to two. With Microsoft Excel, you can put that math to work when you input two separate columns of data into a single ...

Columns organize data in Excel, and are often used as categories with headers to sort cells. You can simply right-click on an existing column to add another column immediately before it. To add ...

There are two situations in which you might need to merge two columns of data in Excel 2013. If you've imported two columns of data from separate sources, you might want to combine them into a single ...

How to extract a list of duplicate values across two columns in Excel Your email has been sent There are a number of ways to highlight duplicate values. Conditional formatting might be the most common ...