Saving file with right filetype


I want to be able to set the default filetype to save as e.g. .htm so that when I try to save a file it isn’t blank and is already appended with .htm

How would I be able to do this? Thanks


See the FAQ:


Maybe, I didn’t correct asked my question (sorry, for my English).
I open Atom. Create New file, change syntax from Plain Text to HTML, for example. And when I saving file Atom don’t writing .html in finish of name file. I took a few pictures to explain my question



Ah ok. You are correct, Atom doesn’t do that. There isn’t a way to make Atom do that out of the box.


This is a important improvement. When I create a new file (default is textplain), then automatically add .txt extension to filename at save it