I've added a Mail Report button to a form that generates an attachment with an XLS extention even when I pick Rich Text Format from the prompt. In addtion the XLS file that is created contains gibberish. To add to the confusion, the button works for some users and not others. Any ideas? Our email system is Lotus Notes 6.5.2. The button's worked fine for the past 4 months, and we've just recently encountered the problem. Thank you in advance.