Is it possible in Excel VBA to change the source code of Module in another Module

Question

I have an Excel .xlam file that adds a button in the ribbon to do the following:

1. Scan the ActiveSheet for some pre-set parameters
2. Take my source text

Answer 1

You can "export" and "import" .bas files programmatically. To do what you are asking, that would have to be the approach. I don't believe it's possible to modify the code in memory. See this article