## Uses of Interface
org.apache.poi.poifs.dev.POIFSViewable

- Packages that use POIFSViewable
  Package | Description
  --- | ---
  org.apache.poi.poifs.filesystem | filesystem package maps OLE 2 Compound document files to a more familiar filesystem interface.
  org.apache.poi.poifs.property | property package contains high and low level Property structures for POIFS.

- - ### Uses of POIFSViewable in org.apache.poi.poifs.filesystem

    Classes in org.apache.poi.poifs.filesystem that implement POIFSViewable
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DirectoryNode` Simple implementation of DirectoryEntry
    `class` | `DocumentNode` Simple implementation of DocumentEntry for OPOIFS
    `class` | `POIFSDocument` This class manages a document in the NIO POIFS filesystem.
    `class` | `POIFSFileSystem` This is the main class of the POIFS system; it manages the entire life cycle of the filesystem.
    `class` | `TempFilePOIFSFileSystem` An experimental POIFSFileSystem to support the encryption of large files

  - ### Uses of POIFSViewable in org.apache.poi.poifs.property

    Classes in org.apache.poi.poifs.property that implement POIFSViewable
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DirectoryProperty` Directory property
    `class` | `DocumentProperty` Trivial extension of Property for POIFSDocuments
    `class` | `Property` This abstract base class is the ancestor of all classes implementing POIFS Property behavior.
    `class` | `RootProperty` Root property

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