1  SA             STRIP+ASSEMBLE     1     122.00
2  LOS             LABOUR ON PARTS SUPPLY     1     1200.00
3  FBS             FAN BLADE SUPPLY     1     1200.00
[download]

my $tb = Text::Table->new();
$tb->add($linenum,$kode,$waarde,$entry_qty,$entry_price);
[download]

Maybe you've had a long day, but I gave Text::Table a try and got good results. Try this:

#!/usr/bin/perl

use strict;
use warnings;
use Text::Table;

my $tb = Text::Table->new(
         "ID", "DESCRIPTION", "QTY", "PRICE"
);
$tb->load(
        [ "1 los", "LABOR ON PARTS", 1, '760.00' ],
        [ "2 sa", "STRIP", 1, '450.00' ],
        [ "3 av", "VALUE", 1, '2000.00' ],
);
print $tb;
[download]

That works, partially, the problem is it prints out the table as it should be in the cmd window, but the same text in the textview are scrambled :(

Maybe your problem is that you want to display ASCII art with a proportional font?

Try to use a monospace font instead, then all the columns should align neatly.