Use aspose. cells for simple excle Export

// Create a new excelsheet workbook buildreport_workbook = new Workbook (); worksheet buildreport_worksheet = tables [0]; cells buildreportcells = buildreport_worksheet.cells; buildreportcells [0, 0]. putvalue ("User Type"); buildreportcells [0, 1]. putvalue ("User Name"); buildreportcells [0, 2]. putvalue ("phone number"); buildreportcells [0, 3]. putvalue ("Unit Address"); // read data and import it to cells for (INT I = 0; I <listsystemus Erinfo. count; I ++) {buildreportcells [1 + I, 0]. putvalue (usertype. find (Int. parse (listsystemuserinfo [I]. usertype. tostring ())). dispstring. tostring (); buildreportcells [1 + I, 1]. putvalue (listsystemuserinfo [I]. username. tostring (); buildreportcells [1 + I, 2]. putvalue (listsystemuserinfo [I]. phone. tostring (); buildreportcells [1 + I, 3]. putvalue (listsystemuserinfo [I]. address. tostring ();} buildreport_w Orksheet. Name = "Address Book"; buildreport_worksheet.autofitcolumns (); string savefilename = server. mappath ("~ /Attachinfo/"+ buildreport_worksheet.name + ". xls "); // save Excel buildreport_workbook.save (savefilename, fileformattype. excel2003); // output fileinfo file = new fileinfo (savefilename); filestream = file. openread (); byte [] buffer = new byte [(INT) filestream. length]; filestream. read (buffer, 0, (INT) filestream. length); filestream. close (); response. clear (); response. appendheader ("content-disposition", "attachment; filename =" + server. urlencode (datetime. now. tostring ("yyyymmdd") + ". xls "); response. contenttype = "application/octet-stream"; response. contentencoding = system. text. encoding. utf8; response. binarywrite (buffer); response. flush (); file. delete (); response. clear (); response. end ();