Your Canon records in MP4 format and up to 4k in resolution and you should be able to get the software to load the video.
If you put the SD card which has video recorded on it in to your computer and open the Explorer or File Manager app and open up the SD card you will probably find that the video files are stored deep in a folder system.
The poor quality image shows the way to the folder named Stream where video files are stored.
If when you find the files your editing software still does not function then in Google type in Da Vinci Resolve, follow links and download the free editing app, its way better than Pinnacle btw, and start a project using this app. I load and edit my 4k footage great with Resolve.
If you still have issues post again and I’ll respond, I have been editing video for 30 years so am well used to editing, video formats etc