Hi,
You can try this: Windows 11 can open HEIC images if you install the official HEIF Image Extensions from the Microsoft Store, which is free. Once installed, your HEIC files should open in the Photos app just like JPEGs. If you want to convert them, the Photos app also allows you to save a copy as JPG by opening the image, clicking the three dots in the top-right, and selecting "Save as."
Kind regards,