Use software to import files or simply use your computer's file explorer (Camera > DCIM folder). SD Card Reader :

: On many newer Canon models, you can capture high-quality thumbnails or "screen grabs" of your video frames or menu settings directly to your memory card. 📲 How to Download Your Files

If you are trying to get a specific "Screen Shot.jpg" from your camera to your device: : Download the Canon Camera Connect app on your smartphone.