perl -pi.bak -e "s/'/\t/" height.txt    # Win32
 perl -pi.bak -e 's/\x27/\t/' height.txt # *nix

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 Win32 and *nix versions

 perl -pi.bak -e "s/\s(\d+)'(\d+)$/\t$1\t$2/" height.txt
 perl -pi.bak -e 's/\s(\d+)\x27(\d+)$/\t$1\t$2/' height.txt

 perl -pi.bak -e "@r=split(/\t/);$r[2] =~ s/'/\t/;$_=join(qq'\t',@r)" height.txt
 perl -pi.bak -e '@r=split(/\t/);$r[2] =~ s/\x27/\t/;$_=join("\t",@r)' height.txt