http://www.perlmonks.org?node_id=1021310


in reply to Convert to utf8

Open the file with its original encoding for reading, open a new file with utf-8 for writing. Then just read the input line by line and output each line to the new file:
my $enc = 'cp1252'; open my $IN, "<:encoding($enc)", 'input.txt' or die $!; open my $OUT, '>:utf8', 'output.txt' or die $!; print $OUT $_ while <$IN>; close $OUT;
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ