Before opening DataClean Add-in you must setup Microsoft Excel to enable macros and Visual Basic code to work.
- From File menu select Options
- From Options dialog box, select Trust Center and press Trust
Center Settings

- From Trust Center Select Macro Settings on the left List and select the option “Disable All Macros with Notification”

- From installation folder double-click “DataClean 20” file and enable Macros in Microsoft Excel.

- After Installation Microsoft Excel must display a new TAB.