private static void extractGrid(String recurso, File destino) throws IOException {
		if (destino.exists()){
			return;
		}
		InputStream inputStream = Config.class.getClassLoader().getResourceAsStream("cat2osm/grids/"+recurso);
		OutputStream outputStream = new FileOutputStream(destino);
		IOUtils.copy(inputStream, outputStream);
		inputStream.close();
		outputStream.close();
	}