Ignoring your typo in the XML declaration :) - If all you want to do is get that value and this is the entirety of your document then you probably want to go with XML::Simple : 

#!/usr/bin/perl -w

use XML::Simple;

use strict;

local $/;

my $data = XMLin(<DATA>);


print $data->{FILE_SIZE};

__DATA__
<?xml version="1.0"?>
<Document_Confirmation>
<FILE_NAME>ack_mr00000001.xml</FILE_NAME>
<DATE_RECEIVED>11/27/2001</DATE_RECEIVED>
<FILE_SIZE>2022</FILE_SIZE>
</Document_Confirmation>

[download]
This is of course is reading from DATA - you will replace the <DATA> with a variable containing your XML document.

/J\

In reply to Re: XML parsing by gellyfish
in thread XML parsing by Anonymous Monk

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