How to download excel from datatable using gembox in asp

Question

Hi,

My objective is  download Excel with three sheets from  three datatable  in asp .net but its not downloading with out any error

 

using gembox.spreedshhet;

 

ExcelFile ef = new  ExcelFile();

Excelworksheet ws =  ef. worksheets.Add("Summary"); //adding three sheets

Excelworksheet ws1 = ef. worksheets.Add("Summary1");

Excelworksheet ws2 = ef. worksheets.Add("Summary2"); 

 

WS.Insertdatatable(dt,"A1",true);  // dt,dt1,dt2 are datatable

WS1.Insertdatatable(dt1,"A1",true);//A1 Cell statring 

WS2.Insertdatatable(dt2,"A1",true);  

ef.savsxls(test.xls) ;

 

 

one more thing i able to place excel in my project folder by giving filepath as Filesteam fs and passed to  ef.savsxls(fs) ; but I need to download in browser its very urgent, Can any one help me 

 

 thanks