QuotedPrintable...blahblah... is just MIME-encoded stuff, so decode it (explode it?) , then encode as UTF or whatever you need, and make sure you got the fonts to support it ... otherwise you might do like http://www.mathjax.org/demos/mathml-samples/

Encode::JP::Emoji

MIME::Tools/mimeexplode/MIME::Explode

Tutorials: perlunitut: Unicode in Perl, perluniintro/perlunitut, Perl Unicode Essentials⁴⁰⁸ (and whatever other docs they reference, unicodespec...), http://blogs.perl.org/users/brian_d_foy/2011/07/toms-unicode-scripts-so-life-is-easier.html...