Hello , I created a tawe video back can't figure out how to export it to imovie to add to another video. Any pointers?

You can publish your Tawe to sho.co.

When you send a video to sho.co, you will get an email when the video render is complete. sho.co will allow you to play the video in the browser. You will also have the option to download the video as an MP4 file (once you have logged into sho.co). MP4 files can be played on most video players including Windows Media Player. You will have the option to mark the video as private which will mean only you will be able to view it.