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I have several files with names c.XXXX and fort.XXXX, where XXXX are arbitrary characters. I want these file types to open by default in Emacs or TextEdit. How to do it?

akr
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  • By definition, a file extension is a suffix at the end of a file that identifies what type of file it is. Finder and LaunchServices uses the extension (the suffix) to map default applications, icons, quick looks, etc. to files of particular types. You can't just re-map this on a whim. – Allan Aug 01 '23 at 20:47
  • @Allan Thank you for your reply. I am using Auto-07p, a bifurcation software, that inputs and outputs these filename patterns. – akr Aug 01 '23 at 21:13
  • Related https://apple.stackexchange.com/questions/13557/choose-a-default-app-for-opening-files-with-no-extension – nohillside Aug 02 '23 at 15:17

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