TangoCharlie writes: "Since OpenOffice.org first released a free suite of office applications, I have been trying to get the various organisations to switch away from Microsoft Office. The argument against using OpenOffice.org has always been that it isn't 100% Microsoft Office compatible. However, it has been several years since Microsoft released Office 2007, and invariably if I send someone an docx or xlsx file they email back to me and ask me to send it in Office97-2003 format. My somewhat rhetorical question is, which Office suite now boasts the best "compatibility"? MS Office or OpenOffice.org?"