my $FH_text_W = $main::FH_text_W;

##</code><code>##

package MyPkgDirectory::MyPkg; # assumes MyPkgDirectory/MyPkg.pm

use strict;
use warnings;
...
sub new{
  my ($classname,$fh) = @_;
  die "File handle not specified" unless $fh;
  return bless {HANDLE => $fh}, $classname;
}
sub samplewrite {
    my ($self,$ver, $sheet) = @_;
   ....
  print {$self->{HANDLE}}  "SHEET $sheet\n"; # Need funny braces to un-confuse "print"
}

##</code><code>##

... # No Pre-declaration. the handle is now a local
  open(my $FH_text_W, $wmode, $filename) or die "ERROR: cannot open $filename for writing $!";
  my $pkg = MyPkgDirectory::MyPkg::->new( $FH_text_W);

  $pkg->samplewrite(10, "foofoo");