Hi @Ravishanker Maduri ,
Does this happen to all reports? You can try to export a very simple report for testing.
If this phenomenon also exists in earlier, it has to be considered the problem of the report itself.
An error occurred during rendering of the report. (rrRenderingError)
This message is returned when Reporting Services cannot render or export the report.
There are usually some limitations when exporting reports to Excel. You can refer to the following links for troubleshooting: Export a paginated report to Microsoft Excel (Report Builder).
For more information about this error, see: rrRenderingError - Reporting Services Error
Best Regards,
Joy
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