In Sublime Text 3, how do I edit my pre-existing snippet files? Is there a way of doing this within ST?
At the time of writing, there doesn't seem to be a straightforward answer to this anywhere on the web.
Custom snippets are saved in a .sublime-snippet
file that you create when you first save the snippet.
By default, these are placed in the "User" package. You can either browse to the file like you would any other file, or using PackageResourceViewer: Open Resource
-> User
-> [name of your snippet file]