Moodle can export/import questions in a variety of formats
Question formats: Microsoft Word table format (wordtable)
Export questions (including images) in a question bank into a Word file, and also import questions from structured tables in a Word file.
Question formats: Gift with medias format
Question import format similar to Gift and uses the same syntax, but instead of a text file it imports a zip file containing the gift text file and media files (images, sounds, ...);