I haven't done an export yet but I found this (did a Google search "jira advanced roadmaps export". https://confluence.atlassian.com/advancedroadmapscloud/sharing-and-exporting-plan-data-998651329.html
@Lars Morten Nygaard We're in the process of rolling out the Export CSV feature at the moment. Feature rollout can take several weeks to reach all customers - but you should have this feature within a month (if you haven't already got it since writing this question!)
To see this feature in action check out our recent dependencies demo here: https://www.youtube.com/watch?v=eQu5VsUqyZA Keeping on top of your dependencies is a key part of ensuring project success....
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