To enable hidden files/folders in finder windows:
- Open Finder
- Open the Utilities folder
- Open a terminal window
- Copy and paste the following line in:
defaults write com.apple.Finder AppleShowAllFiles YES
- Press return
- Now hold ‘alt’ on the keyboard and right click on the Finder icon
- Click on Relaunch
You should find you will now be able to see any hidden files or folders.
To disable hidden files/folder back, just follow the same step aboce. Just replace the word “YES” with “NO“