Convert RIOX to MP4

RIOX files are associated with RioPlayer, a secured platform popular in India, and seems to be a proprietary format designed for specific use with the RioPlayer system. Converting RIOX files to a more widely-used format like MP4 can be challenging due to their proprietary nature, which often includes encryption or other forms of digital rights management (DRM). Thus, converting riox to mp4 is impossible and no file converter can help you out.

Simply put, it is impossible to convert RIOX to MP4 directly.
Thus, there is no so-called riox to mp4 converter or a free online .riox to .mp4 converter to be found.