You might find it easier to work with a data structure like this one: 
use warnings;
use strict;
use Data::Dumper;
use List::Util qw(min max);

my %data;
while (<DATA>) {
    my ($file, $name, @nums) = split;
    push @{ $data{$file}{$name} }, min(@nums), max(@nums);
}
print Dumper(\%data);

__DATA__
File1   abc    1000   1010
File2   xyz    2022   3000
File1   def    3211   2300
File4   ghi    4000   4100
File3   jkl    5002   5100
File4   mno    2001   2500
File5   pqr    100    150  
File3   Ade    203    340
File2   Sea    101    201

[download]

This prints out: 

$VAR1 = {
          'File2' => {
                       'Sea' => [
                                  '101',
                                  '201'
                                ],
                       'xyz' => [
                                  '2022',
                                  '3000'
                                ]
                     },
          'File5' => {
                       'pqr' => [
                                  '100',
                                  '150'
                                ]
                     },
          'File3' => {
                       'Ade' => [
                                  '203',
                                  '340'
                                ],
                       'jkl' => [
                                  '5002',
                                  '5100'
                                ]
                     },
          'File1' => {
                       'def' => [
                                  '2300',
                                  '3211'
                                ],
                       'abc' => [
                                  '1000',
                                  '1010'
                                ]
                     },
          'File4' => {
                       'mno' => [
                                  '2001',
                                  '2500'
                                ],
                       'ghi' => [
                                  '4000',
                                  '4100'
                                ]
                     }
        };

[download]

In reply to Re: Multiple Extraction from Multiple Files by toolic
in thread Multiple Extraction from Multiple Files by snape

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.