use warnings;
use strict;

my @nums;
while (<DATA>) {
    if (/ (\d+) \s+ (\d+) \s+ \| /x) {
        push @nums, $1, $2;
    }
}
print "file1 @nums";


__DATA__
start of tree
------------------

Da         
|  something > 1234: 1 (81.06/25.89)

Number of Items  :     15

Size of the Store :     30

something else here

=== Summary Matrix ===

     a     b   <-- classified as
 11111   222 |     a = 0
  3333   444 |     b = 1