title: Apache POI HSSF Streaming
body: <p>Is there someway to use or implement XLS streaming like their new SXSSF streaming API?
  I need to deal with huge XLS and XLSX Spreadsheets, but since their HSSF does not have any streaming available I always have heap space problems (comming to 1GB and errors).</p>
  
  <p>Does anyone have any suggestions with POI?</p>