Export file name from web viewer preview

I need to change the file name of the exported file from the preview in web report viewer. They are all just report.pdf or report.xls or report.docx. I have
tried
ll.Core.LlSetOptionString(LlOptionString.SaveAs_Path, …
or
ll.ExportOptions.Add(LlExportOption.ExportPath, …
or
_listLabel.Core.LlXSetParameter(LlExtensionType.Export, “PDF”, “Export.File”, …

but that doesn’t affect the file that is generated from the export button in the web report viewer. none of the export options actually affect that file. If I export the report, and select preview as the type or export, and then open it and export from there, then the export options do show up.

Hello Jacqueline! Welcome to the List & Label Forum.

Unfortunately, it’s not possible to overwrite the filename at this time. However, we’d be happy if you’d consider posting your idea again here: Idea Place - combit Reporting Forum. If it gains enough support from the community, we’ll definitely look into implementing it.

Kind regards
Martin Litkin