Underlying data export option is not working

Hi vvummaneni ,

First, you have to make sure that the "Allow end users to export data with current layout, summarized data and underlying data from the service or ReportServer" option is checked when the report is initially created and uploaded to Power BI Service. If it is not checked at the beginning, it will not work even if you check the option and re-upload it later. In this case, you need to checked that option first and then recreate the report. Delete the original report in the Service and re-upload it again.

Copy and paste a report visualization

Copy Measures Between 2 Power BI PBIX Files

In addition, see if you have hit any following of the limitations I mentioned in my previous post.

Best Regards