You probably can start by trying to get the docs built as described at
http://poi.apache.org/howtobuild.html by installing Apache Forrest in the
specified version. With this you can build the documentation pages locally
and take a look before submitting them.
You likely need to take a look at the available classes/code a bit and what
functionality they provide. One thing that usually helps developers most is
a "Quick Guide" which provides ready-made samples of how to do things with
the library, see e.g. http://poi.apache.org/spreadsheet/quick-guide.html for something like this for the Excel format support.
I suggest you take a look around a bit and then get back to us with any
questions/hurdles that you ran into so we can get you going quickly!
On Mon, Dec 25, 2017 at 8:03 PM, Antonio Ferracane <
[hidden email]> wrote: