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<title>HPSF (Horrible Property Set Format)</title>
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<b>HPSF (Horrible Property Set Format)</b>
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<p align="justify">Microsoft applications like "Word" or "Excel" let the user describe his
document by properties like "title", "category" and so on. The application
itself adds further information: last author, creation date etc. These
properties are stored in so-called <em>property set streams</em>. A
property set stream is a separate document within a <a href="../poifs/index.html">POI filesystem</a>. HPSF is POI's pure-Java
implementation to read (and in future to write) property set streams.</p>
<p align="justify">Once the <a href="how-to.html">HPSF HOWTO</a> is ready, it will
describe what a Java application should do to read a property set using
HPSF and retrieve the information it needs. Currently this is explained
in the javadocs of the <code>org.apache.poi.hpsf</code> package only.</p>
<p align="justify">HPSF supports OLE2 property set streams in general, not only the special
case of document properties mentioned above. The <a href="internals.html">HPSF description</a> describes the internal
structure of property set streams.</p>
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