See perlintro and perldsc maybe.

The idea is to initialize $data{ $master_key } with an empty array for each id and then to push every found element onto that array:

...
$data{$master_key} ||= []; # if we haven't seen $master_key yet, creat
+e a fresh array
my %this_set;
for my $col(1 .. $eSheet->{MaxCol})
{
# Some logging for debugging
if( !defined $eSheet->{Cells}[$row][$col]) {
    print "Row $row: skipping empty column $col\n";
    next;
};
my $key= $eSheet->{Cells}[0][$col]->Value;
my $value = $eSheet->{Cells}[$row][$col]->Value;
$this_set{$key}=$value;
}
}
# Store our found set for that ID:
push @{ $data{ $master_key }}, \%this_set;

[download]

In reply to Re^5: Converting Excel to Hash by Corion
in thread Converting Excel to Hash by ravi179

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.