Phenomanan has asked for the wisdom of the Perl Monks concerning the following question:

I have been trying to do search & replace in different file types, and am running into trouble with .hwp files. I cannot use a converter, because it is too big to incorporate in our project. This is particularly sad because I was easily able to modify .hwp when I converted it to .odt, but that is out of the question now. How does one go about searching and replacing in an .hwp file in PERL?