Sharing documents with Jottacloud can be done in two ways.
File Link (public URL) - which is what this article explains
Shared Folder (Collaborative) - Please see this article
In Office Online you can create a file link directly. Simply click the Share button near the top right corner of Office Online:
This opens the Jottacloud share dialog. Click the toggle-switch to create a public link to the document:
Once you have enabled the public link, you can copy the link and send it to your colleague or friends via email, chat, social media etc.:
Note! Recipients of the link will be able to preview and download the file, but cannot edit the linked file itself.