Data Validation Search – Free Add-in Jon Acampora 2017-04-27 A common Excel request is to be able to type characters and see the in-cell data validation drop down list reduce, based on what you have typed. This free add-in from Jon Acampora (Excel MVP) does just that. He has recently added a few new features. If you have long drop down lists this add-in is a great addition to Excel. This link has a video of how it works and the new features like Auto Open when a data validation list cell is selected.