Microsoft Excel's Data Validation tool lets you add a drop-down list to a cell based on existing data in a column. However, how this works depends on whether the source data is part of a formatted ...

Have you ever struggled with clunky, outdated drop-down lists that seem more like obstacles than tools? While basic drop-downs might get the job done, they often fall short when it comes to efficiency ...

Select all the relevant cells, and in the Data tab, click the main part of the split "Data Validation" button. Then, click ...