<DefaultMemberAttribute("Item")>
Public Interface IRange 
   Inherits IPrintable 

[DefaultMemberAttribute("Item")]
public interface IRange : IPrintable  

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.XLS97);
    }
}

Class Program
    Shared Sub Main()
        ' Create a workbook.
        Dim workbook As SpreadsheetGear.IWorkbook = SpreadsheetGear.Factory.GetWorkbook()
        ' Get the worksheet and change the name.
        Dim worksheet As SpreadsheetGear.IWorksheet = workbook.Worksheets("Sheet1")
        worksheet.Name = "2005 Sales"
        ' Get the worksheet cells reference.
        Dim cells As SpreadsheetGear.IRange = worksheet.Cells
        ' Add column headers using a string index into the cells 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.XLS97)
    End Sub 'Main
End Class 'Program