2.2.8 ExObjIdRef
Referenced by: ExObjRefAtom
A 4-byte unsigned integer that specifies a reference to an external object. It MUST be equal to the value of the exObjId field of an ExMediaAtom record (section 2.10.6) or the value of the exObjId field of an ExOleObjAtom record (section 2.10.12).