It's not a Livecycle Form. I can add those methods to the document-level Javascript in Acrobat. They are methods within the Acrobat SDK Documentation. ImportXFAData works just fine. ExportXFAData does not. If I don't include any arguments, that negates the 'S' in the quickbar. The XI release notes suggest that with Acrobat XI, the 'F' in the quickbar is no longer an issue.
For the sake of argument, let's forget about the exportXFAData() method. Why doesn't exportAsText(no arguments) work in Reader XI?