I have an Excel workbook and some cells pull PI data (e.g. PICurrVal function). The Excel's file Formulas>Calculation Options are set to Automatic. But when I open the Excel file, the PI calculation/data pull is not performed. I need to click into the cell and hit either F9 or Enter, which then performs the data pull correctly. I am a bit puzzled why. I am using Win 7+Office365. Anybody has a suggestion?