Ah, when you introduced yourself as an "Online Developer" I immediately thought Software developer, because that is the kind of world I live in.
Moodle is a modular, system. All the different activities like forum, quiz, wiki, ... are plugins. If you are a software developer, you can make a custom plugin that does anything you want (within reason). Developer_documentation
Making a script to turn a list of events into Moodle XML format is a very simple programming task, so would be a good place to start learning how to program. There are many different ways you could do it, but sensible choices would either by to do it in PHP, since Moodle is written in PHP, so that is a language worth learning. Just Google PHP tutorial. Alternatively, you could do it as a Word or Excel Macro, because that is the tool the person typing the list of events is familar with, and you are trying to make life easy for them.