How do I show file extensions in iOS?

Starting in iOS 16, you can show file extensions in the Files app. To do so:

  1. Open Files and browse to a folder (such as iCloud Drive or Downloads).
  2. Tap the three-dot menu button that appears in the top-right corner.
  3. The menu button in Files
  4. Select View Options.
  5. The View Options button
  6. Select Show All Extensions.
  7. The Show All Extensions button

Your files' extensions will appear.

Files shown with extensions

If you want to hide extensions again, uncheck Show All Extensions.