How do i render rdlc to ppt?

I’m getting error for below code:
byte[] bytes = reportViewer1.LocalReport.Render(
“Word”, null, out mimeType, out encoding,
out extension,
out streamids, out warnings);
Stream stream = new MemoryStream(bytes);
Presentation ppt = new Presentation();
stream.Position = 0;
ppt.Save(stream, Aspose.Slides.Export.SaveFormat.Pptx);

@barunready,

I have observed the requirements shared by you and like to share that you need to use Aspose.Slides for Reporting Services on your end to render RDL files to presentation. Aspose.Slides for .NET is an API that manages PowerPoint presentations not RDL files. Please visit Aspose.Slides for Reporting Services documentation for your convenience as well.