A Descriptor may include one or more Attachment files. Attachment files are any files that are neither a manifest file, Information Model files, Embedded Descriptors, or common service files. Attachment files are useful for providing additional information for the understanding and usage of the AutomationComponent.

There is no specific format required for attachment files.

The file name extension and the content type of an attachment file shall be listed in the [Content_Types].xml file of a Descriptor. (See 7.6)

Attachment files are identified by an Open Packaging Conventions relationship of type “http://schemas.automationml.org/container/relationship/AnyContent”.