Access HTML content from SharePoint Online

Good afternoon!  I'm trying to find a way to provide access to Captivate content generated as HTML5 from our company's SharePoint Online site.  The content will be linked from our LMS (which does not house content directly).  I know there are challenges with uploading the .json file type to SharePoint, but I'm wondering if there are other roadblocks as well?  Currently we house our training content as the Flash based PDF on the legacy SharePoint, but with the end of Flash, we need to start the transition to HTML5. I've looked at using MP4 content, but the file sizes produced are RIDICULOUSLY huge!

Any input/suggestions are greatly appreciated!

Cheers,

Patrick