We currently support the uploading of PDF's, PowerPoint's and images. Uploading is easy, just go to the Add Content screen and select "Upload", it's the very first option. Just like attaching a document to an email, you'll then be able to choose a file for upload. 

Uploading should take no longer than a few minutes and then you're good to go. 

Here's a short video walking you through the process:

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