Hi,

There is a similar answer already.

Anyway, nothing prevents java from accessing to any file format. The only problem is, obviously, knowing how that file is written.

I know that there is a company that have developed classes to access to Excel, and probably there are classes for accessing to other files.

if you want to develop your own classes, you can take a look at the Wotsit's Format web site, that contains some specs for many different file formats.