.ptx files



Hi folks,
I'm trying to read some court files which are in .ptx form, but even after trawling the web with Google i can't seem to find a Linux appication for the job. All i can find is the ptx application for generating these files. I can read the files using my laptop running xp & an application which only runs under windowz.I really would prefer to read them on my desktop running SuSE 10.0 though.
Any advice would be appreciated

TIA.

Pat
.