Do you mean .dae?
Why would you bulk export these files?
Just a reminder that asset files remain the property of Mecabricks and that they cannot be redistributed or re-used in other building software.

I'm using Maya so I can't take advantage of the relevant plugins.

I'm not using these for redistribution or anything of that nature. Just a shame that whilst the file type is supported for Maya, the difficulty lies way beyond.

The system is designed to export complete models and batch export doesn't make sense. Lots of MB users are using Maya, Modo, 3DSMax, etc. with no issues. Maybe I misunderstand something and you could explain a bit more about what you try to achieve.