Lihao, here's what i used and it doesn't work: my $mail = MIME::Lite->new(
From =>'abc@host.com',
To =>'abc@host.com',
#Cc =>'def@host.com',
Subject =>'Hello!',
Data =>"How's it goin', eh?",
Type => 'multipart/mixed',
content-type.charset => 'UTF-8',
content-type => 'application/zip'
);


$mail->attach(
Type => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
#Encoding => 'base64',
Path => 'report.xlsx',
#Filename => 'report.xlsx'
Disposition => 'attachment'
);

please advise!