Hi JDub, Welcome to Affinity Forums The desktop versions of Affinity Designer and Photo still cannot open HEIC/F files directly. One way you can work around this is to add the HEIC file to Apple Photos, then go to menu Image ▸ Edit With ▸ Affinity Photo (the file will be sent as a TIFF for editing in Photo) or  alternatively (still in Apple Photos with the HEIF file selected) go to menu File ▸ Export ▸ Export 1 Photo... and select the format you want. You can then open the exported file dir