How to export CellCommentTips to Excel by using GridExcelConverterControl?

//Create grid excel converter object
Syncfusion.GridExcelConverter.GridExcelConverterControl gecc = new Syncfusion.GridExcelConverter.GridExcelConverterControl();
//Hook the QueryImportExportCellInfo event to Export the comments.
gecc.QueryImportExportCellInfo += new Syncfusion.GridExcelConverter.GridImportExportCellInfoEventHandler(gecc_QueryImportExportCellInfo);
//Export the Comments to the Excel
void gecc_QueryImportExportCellInfo(object sender, Syncfusion.GridExcelConverter.GridImportExportCellInfoEventArgs e)
{
    ExcelCommentTip.GridExcelTipStyleProperties style = new ExcelCommentTip.GridExcelTipStyleProperties(e.GridCell);
    if (style.HasExcelTipText)
        e.ExcelCell.AddComment().Text = style.ExcelTipText;
}

'Create grid excel converter object
Private gecc As New Syncfusion.GridExcelConverter.GridExcelConverterControl()
'Hook the QueryImportExportCellInfo event to Export the comments.
Private gecc.QueryImportExportCellInfo += New Syncfusion.GridExcelConverter.GridImportExportCellInfoEventHandler(AddressOf gecc_QueryImportExportCellInfo)
'Export the Comments to the Excel
Private Sub gecc_QueryImportExportCellInfo(ByVal sender As Object, ByVal e As Syncfusion.GridExcelConverter.GridImportExportCellInfoEventArgs)
 Dim style As New ExcelCommentTip.GridExcelTipStyleProperties(e.GridCell)
 If style.HasExcelTipText Then
  e.ExcelCell.AddComment().Text = style.ExcelTipText
 End If
End Sub