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.

How to use Excel’s UNIQUE Function Excel’s UNIQUE function allows users to extract unique values from a dataset, making it easier to identify and remove duplicates.

=SORT (UNIQUE (D3:D13)) Figure E If you’re still using an earlier version, use the Advanced Filter feature to create a static, unsorted list of unique values based on natural data.