XML to Become Word and Excel File Formats

Infoworld | XML to Become Word and Excel File Formats

(excerpt from article):

The first public beta of Microsoft Office 11 demonstrates, as promised, that XML has become a native Office file format. What's more, Word 11 and Excel 11 can associate documents with data definitions written in XML Schema, and they can interactively validate documents against schemas. These are transforming achievements. Previous Office upgrades have been yawners, but version 11 should rivet the attention of IT planners.