Introduction - If you have any usage issues, please Google them yourself
Jakarta POI is the apache sub-objective is to deal with ole2 object. It provides a set of Windows to manipulate Java API documentation is currently more mature HSSF interface, dealing with MS Excel (97-2002) object. It is not like we are just not using csv format generated by Excel conversion thing, but the real Excel object, you can control a number of attributes such as sheet, cell, etc..