Few reports are failing with 'ExcelOpenXML' render format error after rs migration from 2014 to 2016. I made following change to the RS config file so I can use old excel format however some of the reports are using 'ExcelopenXML' format. How can I use both 'Excel' and 'ExcelOpenXML' format so report will be sent out based on render format setup in subscription?
<!--Extension Name="EXCEL" Type="Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer,Microsoft.ReportingServices.ExcelRendering" Visible="false"/-->
<Extension Name="EXCEL" Type="Microsoft.ReportingServices.Rendering.ExcelOpenXmlRenderer.ExcelOpenXmlRenderer,Microsoft.ReportingServices.ExcelRendering"/>
<Extension Name="EXCELOPENXML" Type="Microsoft.ReportingServices.Rendering.ExcelOpenXmlRenderer.ExcelOpenXmlRenderer,Microsoft.ReportingServices.ExcelRendering" Visible="false"/>
<!--Extension Name="WORD" Type="Microsoft.ReportingServices.Rendering.WordRenderer.WordDocumentRenderer,Microsoft.ReportingServices.WordRendering" Visible="false"/-->
<Extension Name="WORD" Type="Microsoft.ReportingServices.Rendering.WordRenderer.WordOpenXmlRenderer.WordOpenXmlDocumentRenderer,Microsoft.ReportingServices.WordRendering"/>
<Extension Name="WORDOPENXML" Type="Microsoft.ReportingServices.Rendering.WordRenderer.WordOpenXmlRenderer.WordOpenXmlDocumentRenderer,Microsoft.ReportingServices.WordRendering" Visible="false"/>