at first sight
the easiest way to split your $data is:

$data = '[-3|1|29x250+46+26|200+300+444|Get][-3|1|29x250+46+26|200+300
++444|Get][-3|1|29x250+46+26|200+300+444|Get]';

@data = split /[\[\|x\+\]]/, $data;

foreach $i (0 .. $#data){
        $i % 11 != 0 ? print $data[$i]," " : print $data[$i],"\n";
}

-----output-----
-3 1 29 250 46 26 200 300 444 Get
-3 1 29 250 46 26 200 300 444 Get
-3 1 29 250 46 26 200 300 444 Get
[download]

no?