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 ...

Block bad data, duplicates, and incorrect dates with these custom rules.

Have you ever struggled with clunky, outdated drop-down lists that seem more like obstacles than tools?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 ...