Apple Mac system View file name extension method introduction

How do Apple Mac view file extensions? Apple Mac show file suffix name How do I set it? Apple Mac OS x defaults to not displaying the file suffix name, and we can make the file's extension visible through Finder preferences. The following PC6 Small series gives you a tutorial on how to set up a Mac to display file suffix names.

First step, click the Finder icon on the top of Apple Mac desktop, click "Preferences" in the menu

Second step, in the Finder Preferences dialog box, in the Advanced Options interface, click "Show all file extensions", turn off the settings screen, open the Finder can see the file name extension!