True if the PivotTable cache or query table is automatically updated each time the workbook is opened. The default value is False. Read/write Boolean.
Remarks
Query tables and PivotTable reports are not automatically refreshed when you open the workbook by using the Open method in Visual Basic. Use the Refresh method to refresh the data after the workbook is open.
Example
This example causes the PivotTable cache to automatically update each time the workbook is opened.
ActiveWorkbook.PivotCaches(1).RefreshOnFileOpen = True