MassGov Declares OpenDocument Standard File Format

Lots of coverage today on the announcement that the Commonwealth of Massachussetts will migrate to the OASIS OpenDocument XML file format for office applications. I assume this means the Commonwealth will also be switching to or some other open source office suite, since Microsoft Office doesn't currently support OpenDocument. Microsoft's Brian Jones naturally thinks the Commonwealth should use Microsoft's forthcoming "open" Office XML format and calls the standard "unnecessarily exclusive". Isn't any standard going to be exclusive? You exclude every format you don't standardize on. While I think the switch is great news I consider it only a partial victory as the original proposal was to move entirely to open source software.