https://www.construct.net/en/make-games/manuals/construct-3/overview/publishing-...
If you using free edition, you can not export anything
https://www.construct.net/en/make-games/buy-construct-3/personal-plans
Viewing post in How to export a project in Construct 3
Construct are following Game Maker Studio idea, the whole thing is bad. $100 a year is way to much, $40 a year for GMS is not great but better price than Construct. Lucky There are many game engines to pick: https://alternativeto.net/software/construct-3/