When you are doing a presentation you might want to add some audio visuals to your speech. For that purpose, you will find interactive boards in all of those spaces that were design to delivering presentations. If you want to learn more about how to use these screens click here.
One of the options is by uploading your files to the platform. Once you are controlling the screen, you will need to click on the following button:
When clicking this button, a dialog will be displayed, where you will be able to search for the file you want to upload. Double click the chosen file and it will start uploading. You will be able to include: slides, videos, pictures, etc.
Bear in mind that the max uploading file size is 200 Mb. If your file happens to be larger than that, the best solution would be to share your screen while doing the presentation.