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For example: gemfile, config, and all other file names with no extensions.

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Is this a windows question, i.e. "Can windows assosiate extensionless files with a program?" or a Dreamweaver question "It won't open files of unknown extension"? – soandos May 31 '11 at 18:47
up vote 2 down vote accepted

Dreamweaver CC - How to open extensionless files

Adobe Dreamweaver CC (13.0):

  • Edit > Preferences > Category: File Types / Editors

  • Add a new extension and just type a dot: .

  • Associate Dreamweaver to it in the Editors column (or Notepad, or Sublime Text)

Extensionless files like gemfile, config, error_log will open up now.

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If its the first look here. For windows 7 see here

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