I just noticed +the +new Norwegian proposal for archiving rules in the goverment list +ECMA-376 +/ ISO/IEC 29500 (aka OOXML) as valid formats to put in long term +storage. Luckily such files will only be accepted based on +pre-approval from the National Archive. Allowing OOXML files to be +used for long term storage might seem like a good idea as long as we +forget that there are plenty of ways for a "valid" OOXML document to +have content with no defined interpretation in the standard, which +lead to a question and an idea.
+ +Is there any tool to detect if a OOXML document depend on such +undefined behaviour? It would be useful for the National Archive (and +anyone else interested in verifying that a document is well defined) +to have such tool available when considering to approve the use of +OOXML. I'm aware of the +officeotron OOXML +validator, but do not know how complete it is nor if it will +report use of undefined behaviour. Are there other similar tools +available? Please send me an email if you know of any such tool.
+ +