How to format a Excel Cell from C#

I am exporting some double datatype value to an Excel file
format (using C#, see attached code snippet).
In this case, its two numbers 2.11 and 2.10.
Problem in Excel is, the number is displayed as 2.11 and 2.1 instead of 2.11 and 2.10.

Question  :
How can I format the Excel cell such that it will display 2.10 and not 2.1?

Excel.Application oXL = new Excel.Application();
oXL.Visible = false;
Excel._Workbook oWB = (Excel._Workbook)(oXL.Workbooks.Add(Missing.Value));
Excel._Worksheet oSheet = (Excel._Worksheet)oWB.ActiveSheet;
 
try
{
    object[,] rawData = new object[10,10];
 
    rawData[1, 1] = 2.11;    
    rawData[2, 1] = 2.10;    
 
    oSheet.Columns.AutoFit();
 
    // Get file name to save exported data
    saveFileDialog.FileName = "somefile";
    DialogResult mDR = ParSaveFileDialog.ShowDialog();
    if (mDR == DialogResult.OK)
    {
        oWB.SaveAs(saveFileDialog.FileName, Excel.XlFileFormat.xlExcel9795, string.Empty, string.Empty, false, false,
                   Excel.XlSaveAsAccessMode.xlNoChange, Excel.XlSaveConflictResolution.xlLocalSessionChanges,
                   false, 0, 0);
    }
finally
{
    oWB.Close(false, string.Empty, false);
    oXL.Quit();
}

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