Xelem is a compact Java-library to read and write Excel files of type SpreadsheetML. It can produce sophisticated, intricate and complex spreadsheets from within any Java program. And, since the release of xelem.2.0, it can read xml-spreadsheets.
A Pure Java Office suite which is compatible with the MS file formats. Since it doesn't require native libraries, it can be loaded inside any browsers and any platforms. Notably it promotes Enterprise 2.0 by combination of uEngine BPM and web office