QTIObjectTreeBuilder qotb = new QTIObjectTreeBuilder(repositoryRef);
List qtiItemObjectList = qotb.getQTIItemObjectList();
QTIExportFormatter formatter = new QTIExportFormatterCSVType1(ureq.getLocale(), "\t", "\"", "\\", "\r\n", false);
Map qtiItemConfigs = getQTIItemConfigs(qtiItemObjectList);
formatter.setMapWithExportItemConfigs(qtiItemConfigs);
resultExportFile = qem.exportResults(formatter, results, qtiItemObjectList, courseNode.getShortTitle(), exportDir, charset, ".xls");
String[] args1 = new String[] { Integer.toString(learners.size()) };
vcStep2.contextPut("information", translator.translate("replace.wizard.information.paragraph1", args1));
String[] args2 = new String[] { exportDir.getName(), resultExportFile };
vcStep2.contextPut("information_par2", translator.translate("replace.wizard.information.paragraph2", args2));
vcStep2.contextPut("nodetitle", nodeTitle);