class Program
{
    static void Main()
    {
        // Create a workbook.
        SpreadsheetGear.IWorkbook workbook = SpreadsheetGear.Factory.GetWorkbook();
        // Get the worksheet and change the name.
        SpreadsheetGear.IWorksheet worksheet = workbook.Worksheets["Sheet1"];
        worksheet.Name = "2005 Sales";
        // Get the worksheet cells reference.
        SpreadsheetGear.IRange cells = worksheet.Cells;
        // Add column headers using a string index into the cell range.
        cells["B1"].Formula = "Jan";
        cells["C1"].Formula = "Feb";
        cells["D1"].Formula = "Mar";
        // Add row headers using zero based row and column indexes.
        cells[1, 0].Formula = "Jennifer";
        cells[2, 0].Formula = "William";
        cells[3, 0].Formula = "Kristen";
        // Add random data using a multiple cell string index.
        cells["B2:D4"].Formula = "=RAND()*10000";
        // Center the column headers using multiple cell row and column indexes.
        cells[0, 1, 0, 3].HorizontalAlignment = SpreadsheetGear.HAlign.Center;
        // Bold the row and column headers using a string index to multiple ranges.
        cells["B1:D1,A2:A4"].Font.Bold = true;
        // Format the data as currency.
        cells["B2:D4"].NumberFormat = "$#,##0";
        // Write the workbook.
        workbook.SaveAs("2005 Sales.xls", SpreadsheetGear.FileFormat.Excel8);
    }
}