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## Package org.apache.poi.poifs.filesystem

filesystem package maps OLE 2 Compound document files to a more familiar filesystem interface.

See:
Description

Interface Summary
BATManaged | This interface defines behaviors for objects managed by the Block Allocation Table (BAT).
DirectoryEntry | This interface defines methods specific to Directory objects managed by a Filesystem instance.
DocumentEntry | This interface defines methods specific to Document objects managed by a Filesystem instance.
Entry | This interface provides access to an object managed by a Filesystem instance.
POIFSWriterListener | Interface POIFSWriterListener

Class Summary
DirectoryNode | Simple implementation of DirectoryEntry
DocumentDescriptor | Class DocumentDescriptor
DocumentInputStream | This class provides methods to read a DocumentEntry managed by a `POIFSFileSystem` instance.
DocumentNode | Simple implementation of DocumentEntry
DocumentOutputStream | This class provides a wrapper over an OutputStream so that Document writers can't accidently go over their size limits
EntryNode | Abstract implementation of Entry Extending classes should override isDocument() or isDirectory(), as appropriate Extending classes must override isDeleteOK()
Ole10Native | Represents an Ole10Native record which is wrapped around certain binary files being embedded in OLE2 documents.
POIFSDocument | This class manages a document in the POIFS filesystem.
POIFSDocumentPath | Class POIFSDocumentPath
POIFSFileSystem | This is the main class of the POIFS system; it manages the entire life cycle of the filesystem.
POIFSWriterEvent | Class POIFSWriterEvent

Exception Summary
OfficeXmlFileException | This exception is thrown when we try to open a file that's actually an Office 2007+ XML file, rather than an OLE2 file (which is what POI works with)
Ole10NativeException |

## Package org.apache.poi.poifs.filesystem Description

filesystem package maps OLE 2 Compound document files to a more familiar filesystem interface.

## Related Documentation

For overviews, tutorials, examples, guides, and tool documentation, please see:

- Apache POI Project

See Also:
  `org.apache.poi.poifs.eventfilesystem`

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