By default, you can’t see many system files, dot files and folders in Finder. To see the files,
- Go to Applications – Utilities
- Open the Terminal App
- Enter in “defaults write com.apple.Finder AppleShowAllFiles YES”
- Restart the Finder App, press option + alt + esc
- Select Finder and Press Force Quit
To hide again, Enter in “defaults write com.apple.Finder AppleShowAllFiles NO”