I have some spreadsheets that have an add-in that pulls data in. These were all fine before yesterday. Now for any change (I think sometimes with no change) the spreadsheet will show pulling in data and of course recalculating formulas. I have tried to mitigate this by changing the formulas to 'manual calculation' however even to close the spreadsheet it goes through this gyration of pulling data and recalculating. It can takes 2-3 minutes just to have the spreadsheet save and close. I have rebooted and reinstalled the add-in. Does anybody have any idea why this would start happening? Excel 2007 btw.