class WorkbookFile implements AutoCloseable {

	public void close() {
		closeInputStream();
		closeOutputStream();
		
		try {
			if (workbook != null) {
				workbook.close();
			}
		} catch (IOException e) {}
	}

	public  WorkbookFile();
	public  WorkbookFile(File mainWorkbook, Integer maxWorkbookSize, boolean createIfNotExists);
	public  WorkbookFile(File mainWorkbook, Integer maxWorkbookSize, boolean createIfNotExists, boolean forUpdate);

}