Export data to predefined excel template.

public void ExportToExcel(ListView lsvData, string sSheeyName)
        {
            Microsoft.Office.Interop.Excel.Application xla = new Microsoft.Office.Interop.Excel.Application();
            xla.Visible = true;
            Microsoft.Office.Interop.Excel.Workbook wb = xla.Workbooks.Add(Microsoft.Office.Interop.Excel.XlSheetType.xlWorksheet);
            Microsoft.Office.Interop.Excel.Worksheet ws = (Microsoft.Office.Interop.Excel.Worksheet)xla.ActiveSheet;
            int i = 4;
            int j = 1;
            int c = 1;
            int r = 5;
            int ilsvCol = 0;
            string sFcol;
            ws.Name = sSheeyName;

            ws.Cells[c, r] = ws.Name;
            ws.Cells[c, r].Font.Bold = true;
            ws.Cells[c, r].Font.Size = 20;

            foreach (ColumnHeader lsvcolumn in lsvData.Columns)
            {              
                if (lsvcolumn.Width > 0)
                {                   
                    ws.Cells[i, j] = lsvcolumn.Text;
                    ws.Cells[i, j].Font.Bold = true;
                    ws.Cells[i, j].Interior.Color = Color.GreenYellow;
                    ws.Columns[j].ColumnWidth = lsvcolumn.Text.Length + 10;

                    j++;
                }
            }
            if (j > 52)
            {
                sFcol = "B" + Convert.ToChar(64 + j - 52).ToString();
            }
            else if (j > 26)
            {
                sFcol = "A" + Convert.ToChar(64 + j - 26).ToString();
            }
            else
            {
                sFcol = Convert.ToChar(64 + j).ToString();
            }

            i = 5;
            j = 1;
            foreach (ListViewItem comp in lsvData.Items)
            {
                ilsvCol = 0;
                foreach (ListViewItem.ListViewSubItem drv in comp.SubItems)
                {
                   // if (lsvData.Columns[ilsvCol].Width > 0)
                    if (lsvData.Columns[ilsvCol].Width > 0)

                        {
                        // ws.Cells[i, j] = "'" + drv.Text.ToString();
                        ws.Cells[i, j] =  drv.Text.ToString();
                        ws.Cells[i, j].Style.HorizontalAlignment = Microsoft.Office.Interop.Excel.XlHAlign.xlHAlignCenter;
                        j++;
                    }
                    ilsvCol++;
                }
                j = 1;
                i++;
            }

        }

    }