Your file is in an 8-bit encoding, yes? Make sure perl thinks so too, then use \x for the substitution. 

#!/usr/bin/perl -C0

# (see -C in perlrun)

# [...]

y/\x91\x92\x97/omg/; # or some other three replacement chars

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In reply to Re: remove characters by hex code by gaal
in thread remove characters by hex code by davidj

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