User blog comment:HubToo/LOTR schematics project/@comment-27723099-20150226115146/@comment-27723099-20150227172829

The (current) Millénaire structure format is quite simple, just a png with the different layers of blocks. The text file is used to define the parameters of the building and how the villagers would use it. I don't think it would be easier to convert schematics into the Millénaire format. Btw, Millénaire also has a tool that allows you to export buildings directly from the game in the Millénaire format.