When you click an attached file, the attachment is displayed in the message pane of the QuickViewer. This is usually faster than opening the attachment; however, the attachment might not be formatted properly. If the attachment type is not supported, you receive an error.
Open the item containing the attachment.
Click the attachment.
If you receive a message indicating that The attachment can only be viewed with an external application, then you must open the file. For information on opening an attachment, see Opening Attached Files.
For trademark and copyright information, see Legal Notices.