This is t he best open source office program, it offers desktop applications, such as a word processor, spreadsheet, presentation manager, and drawing program, with a user interface and feature set similar to other office suites. OpenOffice.org are available in 27 languages with more being constantly added by the community. OpenOffice.org runs stably and natively on Solaris, Linux (including PPC Linux), and Windows. Additional ports, such as for FreeBSD, IRIX, and Mac OS X, are in various stages of completion.