 How to open photos with such extensions as HEIC. In a Windows operating system, in Windows 10, when you try opening an HEIC picture with the standard photos utility, you'll see the message saying, install additional codecs to work with this file and download codecs at Microsoft Store, if you click on the link. The store will open automatically and suggest you to buy the codecs. After installation, you will be able to open HEIC photos easily. Use an online converter to quickly transform HEIC images into JPG. Just drag all your photos into this window, and then click download. One more way to open photographs with HEIC extension is to upload them to your Google Drive. All you have to do is to drag all your photos into this window, and the service will open them.