Exporting...

Click the Output Menu:

Set Frame Range to just encapsulate your action:

set output destination folder:

Set output format to FFmpeg

under 'encoding', set container to mpeg4:

In the Render menu, press render animation:

let render until your last frame is done (in my case 40), then close the render popup window:

\

Your animation video file is now where you specified. Test it by draggin into Chrome!

dragged into Chrome...