map.put("urn:schemas-microsoft-com:vml", "v");
map.put("urn:schemas-microsoft-com:office:office", "o");
map.put("urn:schemas-microsoft-com:office:excel", "x");
xmlOptions.setSaveSuggestedPrefixes(map);
rootObject.save(out, xmlOptions);
}
@Override
protected void commit() throws IOException {
PackagePart part = getPackagePart();