The nice thing about using Microsoft Word files for source code, is that you can color-code and format your source code the way you want to, and add comments, and other features to your source code, and then have an interpreter or compiler just use the source code itself, and disregard all of the formatting. Also, it works nicely to make your source code into intellectual property documents, so you can protect your source code with a disclaimer on every single file, so if the files are separated, then the components of your software are also protected by a disclaimer, which will clamp down on programmers or hackers stealing your source code that you spent so much time on making.
This software improvement includes a diff tool for Linux that allows the difference between code documents or even basic word documents to be shown in the command line, neatly, such as two different word documents that were the same to start out, however one was modified to include a new version, which the diff tool will just show the updates or the changes, which could be used with GitHub and GitHub Desktop, as well.
Additional improvements to Microsoft software to use Word documents as source code documents, includes adding new conditional formatting tools, so that text that seems to act in a certain way, such as using pronouns or proverbs or nouns or match sequences based on regular expressions, can have conditional formatting applied to it. Also, adding a command line to Microsoft Office, including to Microsoft Word, would improve the ability to change documents and other features, through command line interface commands, such as formatting or even text generation with GPT tools.