If you can't find the button for exporting your Dashlane data, you may be in the wrong app. You have these options for exporting your data from Dashlane:

Log in to Dashlane

Note: If you're a professional plan member, and you see a pop-up telling you that you can't export, your plan admin might have turned off your ability to export. Contact your admin. If you're an admin looking for information on how to allow exports, check out our article on policy settings for professional plans.
Use Spaces to separate your personal and work logins
Policy settings for professional plans