Open Source General Purpose Libraries in Java

The POI project is the master project for developing pure Java ports of file formats based on Microsoft's OLE 2 Compound Document Format. OLE 2 Compound Document Format is used by Microsoft Office Documents, as well as by programs using MFC property sets to serialize their document objects. There following are ports, packages or components contained in the POI project: * POIFS is the set of APIs for reading and writing OLE 2 Compound Document Formats. * HSSF is the set of APIs for reading and writing Microsoft Excel 97(-XP) spreadsheets. * HWPF is the set of APIs for reading and writing Microsoft Word 97(-XP) documents. * HSLF is the set of APIs for reading and writing Microsoft PowerPoint 97(-XP) documents. * HPSF is the set of APIs for reading property sets.