: Use the Alexa Skills Kit to develop skills that play video files like MP4s on Echo Show devices.
If your file relates to building or using video capabilities on Amazon Alexa, follow these steps to manage or produce content for it. Setup & Development Alxka.mp4
If you are simply trying to a file named Alxka.mp4 : : Use the Alexa Skills Kit to develop
: Upload MP4 clips to Amazon Photos to use your Echo Show as a digital frame that plays short video memories. Alxka.mp4