The macOS has thousands of Hidden Files. Apple has hidden these files from view because, for the most part, we do not need to see them. And, they have hidden them so we do not break stuff in our Mac operating system. However, there are times when you may need to see Hidden Files during a troubleshooting process or to include something in an Applications Macros.
Showing Hidden Files
I would say that about 99% of the time Mac users do not need to see or mess around with Hidden Files. You can really mess up your Mac if you Delete or alter the wrong thing in the Hidden Files area. However, if you need to locate a hidden file for troubleshooting or whatever, it is very easy to reveal them.
There are several ways to reveal Hidden Files in the macOS Finder:
The easiest way and the easiest to remember is to use the keyboard key combination of Command ⌘ + Shift ⇧ + Period . Here are some Hidden Files in my macOS Home Library Folder:
When you are finished with Hidden Files just use the same keyboard command to hide them once again.
If you are a Path Finder user like me, there is a builtin command called Show Invisibles that reveals Hidden Files:
When you click on Show Invisibles in the Path Finder window the Hidden Files are displayed:
To close Hidden Files just click on Show Invisibles once again.
Displaying Hidden Files can be helpful, especially if you need to do so for some type of troubleshooting routine. However, most of the time they are best left in their hidden state. Sometimes Apple really does know best.