You can convert a JFIF file to JPG, though the two formats are nearly identical, and most software will open a JFIF file as a JPG.

The iPhone's HEIC file format is better than JPEG, but it's not always compatible, so you need to convert it.

Converting a HEIC file to JPG only takes a few steps on Windows 11 and you can do it via the operating system's native apps or via a free web app. Here's how.