Sun Microsystems has released StarOffice 5.2, the latest enhancements to its free office software suite designed to compete with Microsoft's Office. The new version includes improved Microsoft Office import and export filters, reduced file sizes, full online help and written documentation, among other features, the company says. The software is now available in 11 languages. StarOffice 5.2 runs on Windows, Linux and Solaris. StarOffice 5.2 can be downloaded for free.