Let’s say you have spend a lot of time to build SSRS reports, and you want to re-use these data sets in Power BI.
Well this is possible even if you are running the older version of SSRS.
Even if this report is running in Native or Integrated SharePoint Mode, or is a Parametrized report
Open Power BI and GET DATA from the Web Connector
Fill in your report URL link and add the rs:Format=XML parameter to get an XML output from you report
If all goes well you will get the Report XML output and see the SSRS TABLIX and FIELDS