Data validation is the foundation of creating drop-down lists in Excel. By setting up data validation rules, you can create lists that automatically update as your data changes.

Learn to create efficient, interconnected Excel drop-down lists using range functions and data validation techniques. Multi-level drop-down ...

Specifically, you can use Power Query to import a single dataset like an Excel workbook, a table from a website, or a database. Alternatively, you can import multiple datasets from worksheets in an ...

Next, in the Allow field of the Data Validation dialog box, select "List." Finally, activate the "Source" field, and select the cells containing the values that you want to appear in the drop-down ...