If you receive an attachment, and you do not have any appropriate software program installed to open it, you can still view the contents (but not edit them). Also note that printing files from a viewer may give you unexpected results.
To view the attachment, double-click it and select View
Delete file attachments - You can delete one or more attachments
Or click to select the attachment, and select, Attachment > View
from a document. You cannot retrieve attachments once you delete them
from a document.