How to Set Filetype Association

  1. In the main menu, click on Edit > Settings….
  2. Select File editing > Filetype associations from the menu on the left.

  3. On a new line enter: the file extension, the path to the executable file, and any arguments required.
    For example, to open a .php file in Notepad, enter:
    php "C:\Windows\notepad.exe"
  4. Select File editing from the menu on the left.
  5. Ensure that Use filetype associations if available is selected.
  6. Click on OK.

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