In DISCO, attachments are either an attachment to a parent email, or a document embedded in another (e.g. an Excel spreadsheet embedded in a PowerPoint presentation). When in the document viewer, click the Attachments button to list all documents attached to (or embedded in) the current document.
In the example above, the current document is an email with three attachments. The following information is displayed for each attachment: DISCO ID, filename, and an excerpt of first few words of the parent document.