Uploading the file itself or uploading a screenshot is also not a possibility at school, due to restrictions on website access, by the Government mandated security software. I have tried to upload screenshots of other models but they couldn't be uploaded. However, another group member (Fordy) has been able to export, convert and add his models to the game without error, and my tower worked fine, whereas my elemental didn't.
We are currently exporting various "textured" and some animated models into the game in place of Magic and Tech units to get the hang of the process and troubleshoot.