For backup purposes, you can allow viewers to download the original uploaded videos of a presentation or standalone video. For instructions on enabling this for Share Links and Private Deliveries, please reference the following article:
Alternatively, you can export a presentation for offline viewing and provide it to the viewer. For more details on this feature, please reference the following article:
Also, in the future we will be adding the ability to download videos and presentations within the MediaZilla app to their local devices for offline use.