Export the Excel Template with column names using XML

lblImportError.Text = "";
string strXML;
strXML = "\n";
strXML += "\n";
strXML += "<workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" hold=" /> strXML += " xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">\n";
strXML += "<excelworkbook xmlns="urn:schemas-microsoft-com:office:excel">\n";
strXML += "<activesheet>2\n";
strXML += "\n";
strXML += "<styles>";
strXML += "<style ss:id="Default" ss:name="Normal">\n";
//strXML += "<style ss:id="merge" ss:selection.merge="">";
strXML += "<alignment ss:vertical="Bottom" ss:horizontal="Center">\n";
strXML += "<borders>\n";
strXML += "\n";
//strXML += "<interior>\n";
strXML += "<numberformat>\n";
strXML += "<protection>\n";
strXML += "</style>\n";
strXML += "<style ss:id="Default1">";
strXML += "<interior ss:color="#63D954" ss:pattern="Solid">";
strXML += "</style>";
strXML += "</style></styles>\n";
strXML += "<worksheet ss:name="Acquired Type">\n";
strXML += "\n";
strXML += " <ss:column ss:width="120">";
strXML += "<ss:column ss:width="120">";
strXML += "<row>\n";
strXML += "<cell ss:mergeacross="1">Acquired Type Template";
strXML += "\n";
strXML += "<row>\n";
strXML += "<cell ss:styleid="Default1">Acquired Type Code\n";
strXML += "<cell ss:styleid="Default1">Acquired Type Name\n";
strXML += "\n";
strXML += "\n";
strXML += "\n";
strXML += "";
String ExcelXML = strXML.Replace("'", "\"");
Response.Clear();
Response.AppendHeader("Content-Type", "application/vnd.ms-excel");
Response.AppendHeader("Content-disposition", "attachment; filename=AcquiredType");
Response.Write(ExcelXML);
Response.Flush();
Response.End();