Using synthesis

I can’t seem to upload our robot to synthesis, it’s asking for a folder and not a file (I want to upload the inventor .iam CAD file). how can I change it to make it accept a regular CAD file?

I haven’t used much synthesis however if you open inventor there should be somewhere to get a plug-in for synthesis exports, not entirely sure how inventor works im a solidworks guy so.

Might be worth checking the synthesis tutorials out.