Even if pictures are stored internally as HEIC, Photos exports pictures as jpgs if you like. You can select as many as you want and choose "File>Export>Export xx Photos," and you can choose jpeg as your format.
Even if pictures are stored internally as HEIC, Photos exports pictures as jpgs if you like. You can select as many as you want and choose "File>Export>Export xx Photos," and you can choose jpeg as your format.