difference jxl and poi excel

Difference between JXL and POI

1. jxl supports for Microsoft Excel
    it supports for office 97-2003 (xls) format
    supports either read / write only one at a time

2. POI --Apache
      HSSF (Horrible SpreadSheet Format) – reads and writes Microsoft Excel (XLS) format files.
      XSSF (XML SpreadSheet Format) – reads and writes Office Open XML (XLSX) format file
      supports both read and write at a time in excel file
      supports for xlsx formats(office 97 and also for 2007)