Programming :: Mail Attachment Using The Perl?

My script collects information and writes it to a xls file and should mail it across. I tested the first part of the script which writes the excel file , it does write the excel file fairly with expected data using Spreadsheet::WriteExcel module Second part uses MIME::Lite , All I get is a mail with intended subject intact but without the attachment . Following is the code , I have googled and tried out many options , didn't go any further apart from receiving a mail without attachment.

use MIME::Lite;
$msg = MIME::Lite->new(
From => 'xx',
To => 'xx',

[code]...

I am using RHEL 4 , Perl 5.8