How to import .uvoptx and .uvoprojx files into Keil Studio?

I am doing work on an ST Micro board. How can I import the above files? Or do I need to use a different Arm IDE such as uVision?


that seems like uVusion project files
µVision User’s Guide (

BR, Jan

OK, thanks. It looks like I cannot use Keil Studio but will have to get uVision5.