Development:Question import/export formats
From MoodleDocs
Importing and exporting have in common the data structure of questions in moodle but different requirements about the import or export modules unless the import or export is related to the same standard (ex.QTI). The moodle data structure should be avalable elsewhere. (to be continued)
See also
Lesson question types - both Lesson and Quiz can import the basic Moodle question types.