Excel Services Refresh method not working in Sharepoint 2013

Question

Hi,
In our application, we open excel services workbook in sharepoint 2013. Using sessionid of the workbook, we called Refresh and CalculateWorkbook methods in that order. After Calculateworkbook method, I see time stamps in LastUpdatedTime for each connection
in 'Connections' tab of excel workbook. When Refresh method is called again after CalculateWorkbook  method, the LastUpdatedTime for the connections becomes blank.
When I use sharepoint 2010, the temstamp is not becoming blank after refresh.
I think due to this reason we see blank data on our reports. Can somebody tell whether there is a problem with Refresh method in sharepoint 2013? Or is there somebody facing problem with excel services in sharepoint 2013? Any pointers can help.
Thanks,
Pranava

Answer 1

Hi，
For your issue, verify if Excel files are rendered by Office Web Apps:
When Office Web Apps is responsible for the rendering the URL will look something like this:
https://server/_layouts/15/WopiFrame.aspx?sourcedoc=/Documents/excel.xlsx&….
And when Excel Calc is rendering the document it should look like the following:
https://server/_layouts/15/xlviewer.aspx?id=/Documents/excel.xlsx&…
Here is an article about how to enable pdf preview with OWA:
http://www.wictorwilen.se/sharepoint-2013-enabling-pdf-previews-with-office-web-apps-2013-march-2013-update
Besides, refer to configure Office Web Apps for SharePoint 2013:
https://technet.microsoft.com/en-us/library/ff431687.aspx
Best Regards,
Lisa Chen
TechNet Community Support
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