Collection of APIs for Java developers To manipulate files from Word Excel PDF PowerPoint Visio OneNote Email Project Images 3D GIS....ODT, OTT Microsoft Excel: XLS, XLSX, XLSB, XLSM, XLT, XLTX, XLTM...DIF Microsoft PowerPoint: PPT, PPTX, PPTM, POT, PPS, POTX, PPSX...