Sorry, there are many SkyDemon data formats and they are all proprietary and undocumented. They're mostly text-based, though, so you should have no problem converting other data formats if you're good at that sort of thing, but we can't offer any advise ourselves. You can use the SkyDemon DataCreator tool on Windows to create such data in a GUI, then use Notepad to analyse the output.
I would be very hesitant to convert data from another product, though. Such data is often very poor.
We currently have no intention of incorporating static maps of any kind into SkyDemon.