I have files .mdown which I'd like to have icon previews for in the Finder, like normal .txt files would. Is that possible?

  • Possible, yes. But depends on which app you want to open them. Do a Get Info (Comm-I) on any one of them, scroll down to Open With, choose your app, and also choose Use this app to open all docs like this one. You can also copy and paste the doc icon from another .md file. Is this what you mean?
    – Zo219
    Sep 2, 2015 at 2:55
  • Not just the doc icon, but have live previews (of the contents of the file).
    – Aldrich Co
    Sep 2, 2015 at 5:56
  • Sorry, I wasn't really sure what you were asking, and should have passed. You don't mean what shows up in Quicklook, do you? Good luck, anyway.
    – Zo219
    Sep 4, 2015 at 1:45


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