Recently, there was a question regarding the update of an abap2xlsx installation originally made with SAPLink. My recommendation, there, was to clear out the whole package and reinstall. In the end, local modifications aside, you'd still be getting the whole shebang so that's ok.
Now I am facing a somewhat similar problem, but this this abap2xlsx belongs to a subpackage of ZMONSTERS, from Paul Hardy 's book "ABAP to the Future". As far as I know, no one is using that package at the moment.

Should I...
Just in case someone is interested in using those examples in the future, I'd rather not go route no; also no. 3 is out, the installation is so old that it predates the split between main library and demo repositories so a separate local demo package would be needed.
What are your thoughts on this?