Microsoft Excel comes with a lot of built-in functionality that doesn't restrict you to comparing data in two columns using only one method.

Microsoft Excel worksheets can become complicated, especially when comparing columns for validation. Manually cross-checking large datasets on your personal computer may cause you to overlook ...

You can freeze columns in Excel with a few clicks, and then unfreeze them when you no longer need to view them statically.

A row-by-row formatting rule is as easy to apply as a column-by-column in Microsoft Excel, but you might not get the results you thought you would.