I am creating an excel work book of my daily report. I want the header part to coloured to yellow. All links that are posted either requires a link of the workbook to be opened or are not specific to probelm. I am posting my code here, please suggest how to make Row 6 in yellow color.
    string workBookName;
        // creating Excel Application
        Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
        // creating new WorkBook within Excel application
        Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
        // creating new Excelsheet in workbook
        Microsoft.Office.Interop.Excel._Worksheet worksheet = null;
        // see the excel sheet behind the program
        app.Visible = true;
        // get the reference of first sheet. By default its name is Sheet1.
        // store its reference to worksheet
        worksheet = workbook.Sheets["Sheet1"];
        worksheet = workbook.ActiveSheet;
        // changing the name of active sheet
        workBookName = DateTime.Now.ToString("ddMMMyyyy-HHmmss");
        worksheet.Name = workBookName;
        worksheet.Cells[1, 1] = "Logistics";
        worksheet.Cells[2, 1] = "Tracking Number";
        worksheet.Cells[4, 2] = "Date - ";
        worksheet.Cells[4, 3] = dateTimePicker1.Value.ToString("dd/MMM/yyyy");
        // storing header part in Excel
        for (int i = 1; i < dataGridView1.Columns.Count + 1; i++)
        {
            worksheet.Cells[6, i] = dataGridView1.Columns[i - 1].HeaderText;
           // worksheet.get_Range(worksheet.Cells[6, i]).Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Green);
        }
        // storing Each row and column value to excel sheet
        for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
        {
            for (int j = 0; j < dataGridView1.Columns.Count; j++)
            {
                //if (!string.IsNullOrWhiteSpace(dataGridView1.Rows[i].Cells[j].Value))
                {
                    worksheet.Cells[i + 8, j + 1] = dataGridView1.Rows[i].Cells[j].Value;
                }
            }
        }
        // save the application
        workbook.SaveAs("Tracking Number Report " + workBookName + ".xls", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
        // Exit from the application
        app.Quit();
I want row 6, which is the header part in my case to be colored.
 
    