Trouble with Canon's new .cr3 RAW files

Hello,

I’m having trouble uploading my RAW files to ImageJ, and after some digging around I think it may be because it saves them as .cr3 raw files (it’s a Canon Rebel SL3). It looks like this is a somewhat new file type for all new Canons, but still has little support. Does anyone have a workaround for this? Or has anyone had success importing .cr3 files? I put a decent amount of money into making this camera UV capable, so I’d hate for my images to be unusable by ImageJ.

I appreciate any advice or insight you can offer!

-Sierra