There are some important questions regarding OOXML’s upcoming ISO bid that Microsoft cannot answer or just simply won’t. From 25-29 February 2008 in Geneva, Switzerland, the ISO community will hold a Ballot Resolution Meeting (BRM) of the National Boards to discuss and vote finally on OOXML as an ISO standard. This article raises questions that Microsoft should answer to the satisfaction of the ISO community as part of the deliberation leading up to the BRM vote.