Duplicates in the same column are easy to find by sorting, filtering, and using conditional formatting. When none of those are an option, try this simple formula solution.

Use a logical OR operator in conditional formatting The equality operator we used in the last section was easy to implement, but it doesn’t work as expected when applied to a single-column range.

Alternating row or column colors assists data identification by making the row or column easier to distinguish. In Microsoft Excel, you can achieve this effect using conditional formatting to ...