SQL Server Reporting Services – Opening an RDL in Older Version of Visual Studio Opens as XML

In order to fix this issue, you need to remove a few lines of code from the XML.

    1. Replace xmlns with:
      <Report xmlns="http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition" xmlns:rd="http://schemas.microsoft.com/SQLServer/reporting/reportdesigner">
    2. Remove only the Report Section header and footer tags (leave the child elements)
      <ReportSections>
      <ReportSection>
      
      ..................................
      
      </ReportSection>
      </ReportSections>
    3. Remove the entire ReportParametersLayout section
      <ReportParametersLayout>
      
      <GridLayoutDefinition>
      
      .....................................
      
      </GridLayoutDefinition>
      
      </ReportParametersLayout>