They are de facto standards as an application. As data formats, governments and large companies required them to become available under formal standards. After

They are de facto standards as an application. As data formats, governments and large companies required them to become available under formal standards. After doing a lot of outright sleazy things, Office format (which is basically xml files wrapped in a zip file) is now a formal standard. When companies like Microsoft step around interoperability, they should be severely chastized and then punished, which apparently only governments and large companies have the wherewithal to do.