You take a photo on your iPhone and email it to yourself. You try to open it on your Windows laptop, but the computer says it cannot display the file. You see a file extension you do not recognize: ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...

Managing files on an iPhone has become significantly easier with recent updates to iOS, particularly with the introduction of the ability to change file extensions directly within the Files app.