How to Redirect action after export excel from ExcelPackage

Question

Sheets.Cells["A:AZ"].AutoFitColumns();

Response.Clear();

Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";

Response.AddHeader("content-disposition", "attachment: filename=" + "ErrorReport.xlsx");

Response.BinaryWrite(Eps.GetAsByteArray());

Response.End();

return this.RedirectToAction("index",false);

 

 

but its not redirect 

How to Redirect Index Action in mvc