Not yet canon raw files CR3 recognised by Rawtherapee

So I got the colour checker, and a couple of days ago there was a brief window of clear sunshine, so I went out and had a go at taking the pictures, then did the tungsten indoors that night. Foolishly, I shot the daylight ones handheld, and at ISO 200 (Later that evening I learned the camera’s base ISO is apparently 100). So I had planned to re-shoot the daylight shots today on a tripod at ISO100, but despite the weather forecast calling for a clear, sunny day, its actually fairly dark overcast. Maybe I don’t need to re-shoot the daylight shots, they seem sharp and decent enough to me, here’s screenshots of them in RT:

I don’t mind re-shooting them, but given the weather the light getting more wintery with each passing day, I wonder if I should just go ahead with these ones I’ve got, there’s no telling when the sun might appear again, what do you guys reckon?