https://www.iprhelpdesk.eu/news/copyright-or-patent-how-protect-my-software
Following the aforementioned, copyright will protect only the computer program in the form written by a programmer i.e. its source code. Neither the functionality of a computer program, nor the programming language nor the format of data files used in a computer program in order to exploit certain of its functions constitute a form of expression of that program, and thus these are not protected by copyright.