2. Click the "Add Excel File(s)" button to add files. Then an open file dialog will appear, hold CTRL or SHIFT key to select multiple files. To add all files in a folder, click "Add All Excel Files in Folder" then select a folder. "Clear List" button will remove all excel files in the list.
3. Checking the "Make backup of excel files and put backup in same folder" if you want to backup before it is being modified.
4. There are 3 options to choose for lookup such as "Block of specific cells", "Active sheet", and "Entire Workbook".
5. To start lookup area code on selected excel files, click "Start" button.