MapInfoDocument doc = MapInfoDocument.Factory.parse(is);
mapInfo = doc.getMapInfo();
maps= new HashMap<Integer, XSSFMap>();
for(CTMap map :mapInfo.getMapArray()){
maps.put((int)map.getID(), new XSSFMap(map,this));
}
} catch (XmlException e) {
throw new IOException(e.getLocalizedMessage());
}