Your decks can be downloaded as PDF and HTML files. These are non-editable files that can be used for printing and offline presenting.
To request an export, from your Dashboard home page click on the presentation and look for the "Export" button among the available actions. Both options will be downloaded automatically to your computer files and you'll also receive a download link in a confirmation email.
This download format will help you present while being offline. Once you request it, a .zip file will be downloaded, open it and expand the folder to find the HTML file within. This will open your presentation in your default browser and it will keep all animations and features for offline presentations.
Please note that videos can't be reproduced while being offline.
(If you need more details about opening your HTML file, please check this article)
With this download format, you'll get an image of your slides containing all visual information but without transition animations. This file works for printing and sharing an offline file.
Check out this short tutorial on how to export your presentation to an offline version:
*Exporting presentations isn't available with a free account.