Web you aim to add a dropdown list where each item appears just once.
How to add drop down list options in excel. Select the cells that you want to contain the lists. To extract the unique items, use this formula: In the source box, add new list.
=unique (a2:a21) optionally, you can sort. Click data validation under the data tools section of the data tab. The steps slightly vary depending on whether the source items are in a regular range,.
Select the data tools group from the data tab. In the dialog, set allow to. Web to insert a drop down list in excel, you use the data validation feature.
Make sure the items are consecutive (no blank rows). In the data validation dialogue. Edit, copy, delete, add or remove items without changing the data.
Precede it with an equal sign.