Preview files in finder without quicklook I'm a programmer and I use a lot of different file types that are all plain text.  I would like to view the contents of the files in finder, but not in QuickLook, rather in the right-most preview pane, like it does for standard text files.

  

I'd like the same thing for my codefiles (.scala, .html, .css, etc...)
The plugin qlstephen does in fact show the content of text-based files in the preview pane, not only the QuickLook window.  What really threw me off was that the pop-up window &amp; the pane embedded in finder are both called QuickLook.

Anyway, it's dead easy to install.  Download the latest version from here: https://github.com/whomwah/qlstephen/releases

Unzip

Copy the binary to the directory ~/Library/QuickLook  (create QuickLook if it doesn't already exist)