* @return a new CTChartSpace bean
*/
private void createChart() {
chartSpace = CTChartSpace.Factory.newInstance();
chart = chartSpace.addNewChart();
CTPlotArea plotArea = chart.addNewPlotArea();
plotArea.addNewLayout();
chart.addNewPlotVisOnly().setVal(true);
CTPrintSettings printSettings = chartSpace.addNewPrintSettings();
printSettings.addNewHeaderFooter();