Now, on the fly, I wrote a Python script based on my LibreOffice extension’s code that lets you export the same content, but as Markdown files. It accepts the .aeon file format as input; should this be changed in a future version of Aeon Timeline, an exported CSV file will work instead.
The Python script has only a command line interface, but can be started with the “Silent” option via a batch file (or the Mac equivalent) right along with a Pandoc call.
As far as I know, OSX has Python 3 installed by default, so there shouldn’t really be any difficulties.
By the way, the core of this script comes from an Aeon3 to yWriter converter, so the structure of the narrative and characters/locations assumes a data structure like yWriter. But this is explained on the help page; if necessary you can adjust some things via a configuration file.
Have fun!
Peter