# Package org.apache.poi.hdgf.streams

- Class Summary
  Class | Description
  --- | ---
  ChunkStream |
  CompressedStreamStore | A StreamStore where the data on-disk is compressed, using the crazy Visio LZW
  PointerContainingStream | A stream that holds pointers, possibly in addition to some other data too.
  Stream | Base of all Streams within a HDGF document.
  StreamStore | Holds the representation of the stream on-disk, and handles de-compressing it as required.
  StringsStream | A Stream which holds Strings.
  TrailerStream | The TrailerStream is a special kind of Stream containing pointers, and some core document settings.
  UnknownStream | A placeholder for a stream where we don't known anything about how to process / handle it

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