To enable hidden files/folders in finder windows:

  1. Open Finder
  2. Open the Utilities folder
  3. Open a terminal window
  4. Copy and paste the following line in
  5. Press return
  6. Now hold ‘alt’ on the keyboard and right click on the Finder icon
  7. Click on Relaunch

You should find you will now be able to see any hidden files or folders. To revert:

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