I recently upgraded visual studio 2015 to Vs 2017 and after this upgrade, I noticed
that RDLC file is opening only in XML editor , not in RDLC designer and then I found the below package to resolve this problem
- MicrosoftRdlc Report Designer for Visual Studio (Rdlc Designer and projects for ASP.Net and Windows Forms for Reporting Services Report Viewer Control)
Thanks for visiting!!