I hate to give an anti-answer answer, but I'm afraid you're
not going to have much luck. The PPT file format is one of
M$'s most jealously guarded "trade secrets" right up there
with the PUB format. It is difficult, if not impossible, to
find
anything other than M$ products that read either
format (even their other programs usually won't open them).
Also, considering M$'s current attitude towards Perl, I doubt
that they would even consider licensing the file formats for
use in creating a Perl interface.
Sorry that I couldn't be more helpful.
-
HZ