Macros prevent LabVIEW from accessing worksheet programmatically

I am writing an app in LabVIEW that reads in data from an Excel Workbook. I would like the workbook to open in background but when I do, an Excel popup that states " This workbook will auto-close after 20 minutes of inactivity" opens with an OK button. If I open the workbook with Visible = False, I still get the popup but it opens under my app. How do I supress all popups and prevent macros from running when opening an Excel workbook using ActiveX?

To open the workbook, I am using a "Workbooks Open" invoke node. The message comes from the workbook, presumably an autorun macro put there bo others for users that open the workbook in Windows. I don't want to change the macros, just supress them so that I can get to the data (read only). It would be helpful if I could find a flowchart of properties and methodss for Excel.