JPEG XR started off as a Microsoft format about 20 years ago, but no one trusted them to not sue if reimplemented. Microsoft supported XR, but almost nothing else did.
They gave up on it too. Internet Explorer was the last browser to support JPEG XR.
Image file generated by Zeiss microscope uses JPEG XR.
Yes, I wonder if they got a good deal from MS or why is that. Most of the other vendors went with JP2000 (Aperio, Olympus even Motic)