To disable quotes, I use quote_char => undef in the constructor. Also, binmode after open helps. 
#!/usr/bin/perl

use strict;
use warnings;
use Text::CSV_XS;

my $file = 'sample.csv';

my @rows;
my $csv = Text::CSV_XS->new(
    {
        quote_space => 0,
        quote_char  => undef,
        binary      => 1,
        auto_diag   => 1,
    }
) or die "Cannot use CSV: " . Text::CSV_XS->error_diag();

open my $fh, '<:encoding(UTF-8)', $file or die "$!";
binmode $fh, ':encoding(UTF-8)';
while ( my $row = $csv->getline($fh) ) {
    push @rows, $row;
}
$csv->eof or $csv->error_diag();
close $fh;
$csv->eof;

open $fh, '>:encoding(UTF-8)', 'new.csv' or die "$!";
binmode $fh, ":encoding(UTF-8)";
$csv->print( $fh, $_ ) for @rows;
close $fh or die "$!";


Output: 

hi,bye,test is great,testwhat is your name,is,&#12371;&#12428;&#12288;
+&#35430;&#39443;&#12288;this is a test,test

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In reply to Re: CSV_XS and UTF8 strings by Khen1950fx
in thread CSV_XS and UTF8 strings by beerman

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