Exporting score to ABC notation?

Aug 24, 2018

(Hopefully this is a good place to ask the question. I'm overwhelmed by the sheer number of discussion groups!)

As a first test of using MuseScore, I imported an ABC notation file from my archive and tranposed it to a new key. That worked perfectly. But now, i want to export it back to ABC. So far, I haven't found any way to do that. 
Can someone give me a hint on how to proceed? Or point me at a better place to ask the question?