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.

If Windows struggles to open JPG files, here are a few things you can do.

How to Open a JPEG in Photoshop. The default Windows program for opening JPEG files is Windows Photo Viewer, which displays images without editing them. If you perform graphic design in your job ...

You can convert HEIC files to JPG on a Mac using the Preview app, then you can upload photos to websites that don't support the HEIC format.