How to Export Data to Excel in Xamarin.Forms?

using Syncfusion.XlsIO;
using System.IO;
using System.Data;

//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
  //Initialize Application
  IApplication application = excelEngine.Excel;
 
  //Set the default application version as Excel 2016
  application.DefaultVersion = ExcelVersion.Excel2016;
 
  //Create a new workbook
  IWorkbook workbook = application.Workbooks.Create(1);
 
  //Access first worksheet from the workbook instance
  IWorksheet worksheet = workbook.Worksheets[0];
 
  //Exporting DataTable to worksheet
  DataTable dataTable = GetDataTable();
  worksheet.ImportDataTable(dataTable, true, 1, 1);
  worksheet.UsedRange.AutofitColumns();  
 
  //Save the workbook to stream in xlsx format. 
  MemoryStream stream = new MemoryStream();
  workbook.SaveAs(stream);
 
  workbook.Close();
 
  //Save the stream as a file in the device and invoke it for viewing
  Xamarin.Forms.DependencyService.Get<ISave>().SaveAndView("ImportData.xlsx", "application/msexcel", stream);
}

private DataTable GetDataTable()
{
  //Create a DataTable with four columns
  DataTable table = new DataTable();
  table.Columns.Add("Dosage", typeof(int));
  table.Columns.Add("Drug", typeof(string));
  table.Columns.Add("Patient", typeof(string));
  table.Columns.Add("Date", typeof(DateTime));
 
  //Add five DataRows
  table.Rows.Add(25, "Indocin", "David", DateTime.Now);
  table.Rows.Add(50, "Enebrel", "Sam", DateTime.Now);
  table.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now);
  table.Rows.Add(21, "Combivent", "Janet", DateTime.Now);
  table.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now);
  
  return table;
}