Thanks Ken and everyone for your kindly reply, following is based on Ken's code,

 #!/usr/bin/perl
use strict; 
use diagnostics;
use 5.010;

open my $fh, $ARGV[0] or die "File $ARGV[0] not found!\n";
my $re = qr{TEXT;\s+LAYER 13[1-7];\s+TEXTTYPE 0;.*?STRING ([^;:]+)}s;

{
    local $/ = "";

        while (<$fh>) {
                say $1 if /$re/;
                    }       
                    }
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