For HWS+ subscribers: Every new file gets the same default header comment, but Xcode has a flexible customisation system with built-in macros for filenames, project names, and more. https://www.hackingwithswift.com/plus/learn-something-new/personalizing-your-xcode-header
Personalizing your Xcode header – Hacking with Swift+

We make new files in Xcode all the time, but if you spend just a few minutes you can customize the comments that are automatically placed at the start to make them suit you much better.

Hacking with Swift