The structure of an <Override> element is shown in the following diagram:
diagram
attributes
Name
Type
Use
Default
Fixed
Annotation
ContentType
ST_ContentType
required
A content type as defined in RFC 2616. Indicates the content type of the matching part. The package implementer shall require a content type and the format designer shall specify the content type in an <Override> element. [M2.7]
PartName
xs:anyURI
required
A part name. An <Override> element matches the part whose name is equal to the value of this attribute. The package implementer shall require a part name. [M2.7]
annotation
Specifies content types on parts that are not covered by, or are not consistent with, the default mappings.