Attachment Preview is a new feature in Microsoft Outlook 2007. It allows a user to preview attachments without opening them. The attachment previewers that come with Outlook 2007 are on by default. Attachment Preview supports e-mails that are formatted as HTML, but it does not support those e-mails that are formatted as RTF. It is only available when a user is viewing the received messages and not when a user is composing new messages.
