Perl hieroglyphs.

Perl on this box doesn't seem to know $INLINE_EDIT but does know the
more cryptic $^I, so just do that instead of investigating.
hackXflVersion to make files open in CS5.

As the comments say, I've yet to see a 2.1 format file that I can't
read with CS5 (which only supports 2.0)
Pack/unpack flas.

Interestingly enough, one that I have here actually DOES contain two
different xfl files inside it. Wat?