Rise 360 - Exporting with HTML5

I've just finished building my first Rise360 course, and am attempting to export for publication to our company's LMS.  I've been advised by the vendor that the zip file must contain an HTML5 folder/file, in order to upload.  I've tried exporting as both "LMS" and "Web Only" but neither result in including HTML5 content.  Is this something that is possible, and I'm doing something wrong, or is this not a capability with Rise360? Everything I've read so far has stated that all content is automatically HTML5 and that Articulate/Rise do not use Flash files.

Thanks for any insight!