Files of type:
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 Hi, A two-pronged question: Is it possible to remove the numerous Files of type: types from the open / save screen, and; How do I create a custom file extension to add to the list? Thanks in advance. S 
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 Unfortunately, those are hardcoded in source code, and not user-configurable 
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 Ok, thanks. 
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 Hello, @Scott-Bolton Follow these steps,To create custom extension in notepad++: In Notepad++ navigate to Settings > Style Configurator step 1 :- Choose a language on the left side that you want your own extension to match. 
 step 2 :- In the User ext. field near the bottom, enter in your custom user extension without the
 dot in front of it.
 step 3 :- Now restart Notepad++ and it will map that new extension to the style you’ve chosen. I hope above information will be useful for you. Thank you. 
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 While I applaud your desire to help, the question @Scott-Bolton asked was about the file type extension lists in the File > Open and File > Save dialog boxes. The changes to lexer syntax highlighting settings will not affect the Open or Save dialogs at all. 
