| Interface | Description | |
|---|---|---|
 | IPackage | Represents a container that can store multiple data objects. |
| IPackageFactory | Factory class used to create an IPackage given a stream and a FileMode |
| IPackagePart | Provides a base class for parts stored in a System.IO.Packaging.Package. This class is abstract. |
| IPackageRelationship | Represents an association between a source IPackage or IPackagePart, and a target object which can be a IPackagePart or external resource. |
| Enumeration | Description | |
|---|---|---|
 | RelationshipTargetMode | Specifies whether the target of an IPackageRelationship is inside or outside the IPackage. |