Learn how to create a drop-down list using Data Validation in Excel. Data Validation limits the type of data that can be entered into a cell.

A dynamic data validation list, built using functions like `UNIQUE`, `SORT`, and `VSTACK`, allows users to filter and group data efficiently.

When you update this spreadsheet with new or different data, you won’t have to re-create the validation rule, but you will need to click Circle Invalid Data again. This tool would be useful to bring ...