Canon EOS R50 Advanced User's Manual page 533

3.
Select an image.
Use the <
< > button.
To select other images, repeat step 3.
Press the <
4.
Save.
Select [OK] to save the JPEG image.
If there are other images for conversion, select [Yes].
>< > keys to select an HEIF image, then press the
> button to convert to JPEG.
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