Office 365 Video is an application that is part of the Office 365 suite where users can upload and view videos. By Default only owners of the video can download videos. If you want the viewers to download videos, you would have to follow these steps-
- Click on the channel where the videos are uploaded.
- On the top click on Channel Settings.
- Select the “Permissions” Option on the left navigation.
- On the bottom make sure you choose the option “Owners,Editors,Viewers” from the dropdown.
Now, your viewers should be able to download videos from the channel. 🙂