Excel Services - Query Warning

   You may receive the following warning dialog box when opening a workbook using Excel Services in SharePoint:     Be careful. This workbook contains one or more queries that might be unsafe. Do you want to enable these queries?   To suppress this and other warnings from Excel Services, go to SharePoint Central Administration…

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PowerPivot for SharePoint - Browser Refresh Fails (Data Refresh not supported in Office Web Apps)

We have been seeing Excel Services/PowerPivot data refresh issues using SharePoint 2013 and Office Web Apps (OWA).  Some customers have been running into issues when attempting to refresh data in a PowerPivot workbook on SharePoint 2013 using OWA server, and are seeing errors similar to the following: "PivotTable Operation Failed An error occurred while working…

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