I am using below code to create excel and download it in MVC
public ActionResult DownloadExcel()
        {
            ExcelPackage excel = new ExcelPackage();
            var workSheet = excel.Workbook.Worksheets.Add("Sheet1");
            //data binding to excel here
            var stream = new MemoryStream();
            excel.SaveAs(stream);
            string fileName = "SampleDemoExcel.xlsx";
            string contentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            stream.Position = 0;
            return File(stream, contentType, fileName);
        }
But above code not working for download.
I am able to save excel in local D: drive using below code
  excel.SaveAs(new FileInfo(@"D:\SampleDemoExcel.xlsx"));
But Instead of saving directly in some drive internally, I want download behavior.
How to achieve above scenario
Edit:
Actually, I am calling above method using $.ajax as below
$("#btnDownload").click(function(){
        debugger
        $.ajax({
            url: "/Home/DownloadExcel",
            headers: {
                'AntiForgeryToken': ''
            },
            type: "POST",          
            success: function (data) {
                debugger
            },
            error: function (x, h, r, thrownError) {
                //getting errors here as below
                //     h:parserror
                //  thrownerror:Error:Invalid XML �M�H�� . . .
               }
        });
    });
I am getting an error in ajax call as parsererror and Invalid XML �M�H�� ..
How to handle this
 
    