That is not a format I have seen before.
It should be possible to make an importer for it. There are basically two approaches:
- Make a new importer plugin https://docs.moodle.org/dev/Question_formats
- Make a stand-alone script which reads the file you have, and outputs a file in Moodle XML (or GIFT) format, which you can then import into Moodle. https://docs.moodle.org/39/en/Moodle_XML_format