Opening an Attachment
If a message contains an attachment, you can view the attachment by following these steps:
1. Tap the message to open it.
2. Tap the attachment to download it.
3. When the attachment
has finished downloading, tap the attachment to open it. Windows Phone
8 automatically opens the application that is associated with the
attachment file type (assuming that such an application is installed on
the phone).
Unknown File Types
If an email message contains an
unknown file type, Windows Phone 8 devices still downloads the
attachment, but are unable to open it.
