title: Apache POI writing XLS(not xlsx) directly to disk/stream to avoid out of memory?
body: <p>Is there any way to create XLS file directly to Stream? I am using Apache POI and i create XLS file by using Workbook wb = new HSSFWorkbook(); But it writing the rows on heap memory.How can i write to Disk/Stream. SXSSF only for writing xlsx file but i need for xls? Any idea?</p>