Opening a HEIC file can be tricky if your device doesn't support it natively. On Windows, you can use the HEIF Image Extensions from the Microsoft Store. On MacOS, HEIC files usually open with the Photos app or Preview. Converting to JPEG using online tools or software like iMazing HEIC Converter is another option. Are you trying to open these files on a specific device? Maybe we can find a solution that works best for you!