I found that after using the Hyper File Writer, that I had no way to open the file and view it in FME, and could only use Tableau to open the file to see the data there. I could not find a Reader for Hyper Files as well.
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Hi @jbeaudoin unfortunately it looks like FME can only Write to this format at this time, and therefore would not be able to Read in the data or preview it. There are plans for the release of a Reader for this format, but there is no timeline. I would suggest creating an Idea to gather more interest and influence the timeline of this being supported in the future 
(looks like there is only an idea for the writer which is already supported)
Thank You. I have created the idea and anyone can go here and upvote it should you run across this same issue. AC Idea: Develop a Reader for Hyper Files (safe.com)