final List<Spreadsheet> spreadsheets = new ArrayList<Spreadsheet>();
for (final Entry<Degree, SortedSet<DegreeCandidacyForGraduatedPersonIndividualProcess>> entry : process
.getValidDegreeCandidaciesForGraduatedPersonsByDegree().entrySet()) {
spreadsheets.add(buildReport(entry.getKey(), entry.getValue()));
}
new SpreadsheetXLSExporter().exportToXLSSheets(outputStream, spreadsheets);
}