Import data from Excel to SQl Server: System.Data.SqlClient.SqlException: Incorrect syntax near ).

Am trying to export data from excel sheet to sql server.

am getting error like this

System.Data.SqlClient.SqlException: Incorrect syntax near ')'.

Below is my code.Please Check and help me to fix this problem ...please

Thanks in advance.....

protected void btnUpload_Click(object sender, EventArgs e)
    {      
            SqlConnection conn = new SqlConnection(constr);
            // FilePath with File Name
            String file = FileUpload1.PostedFile.FileName;
            string path = Server.MapPath(System.IO.Path.GetFileName(FileUpload1.PostedFile.FileName));
            FileUpload1.PostedFile.SaveAs(path);
            // Check for File Existence in the path
            if (FileUpload1.HasFile)
            {
                // Declaring Excel object
                Microsoft.Office.Interop.Excel.Application app = new Microsoft.Office.Interop.Excel.Application();
                // Opening the Excel File
                Microsoft.Office.Interop.Excel.Workbook workBook = app.Workbooks.Open(path, 0, true, 5, "", "", true, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, 1, 0);
                // get the active worksheet using sheet name or active sheet
                Microsoft.Office.Interop.Excel.Worksheet workSheet = (Microsoft.Office.Interop.Excel.Worksheet)workBook.ActiveSheet;
                Microsoft.Office.Interop.Excel.Range range;
                range = workSheet.UsedRange;
                 SqlCommand cmd = new SqlCommand();
                for (int rCnt = 2; rCnt <= range.Rows.Count; rCnt++)
                {
                    cmd.Connection = conn;
                    cmd.CommandText = "insert into ExcelTable(Name,Desig) values('" + (range.Cells[rCnt, 2] as Microsoft.Office.Interop.Excel.Range).Value2 + "',"
                        + (range.Cells[rCnt, 3] as Microsoft.Office.Interop.Excel.Range).Value2 + ")";
                    conn.Open();
                    int i = cmd.ExecuteNonQuery(); //Am getting error in this line only
                    conn.Close();
                }
            }
    }