1. Select the drop-down cells
Highlight the cell or cell range containing the drop-down list you want to modify.
2. Open Data Validation settings
Click the Data
tab in the top Excel toolbar, then choose Validation
.
3. Edit the list items
Click into the Source
field where your list items are defined. Make your changes—for example, add a new item like Blocked
.
4. Save your changes
Click OK
to confirm and update the drop-down list.
5. Verify the updated list
Click a cell in the edited range and use the drop-down to view your updated list items.