Conversion into Articulate/Storyline 360

I'd be interested in seeing what you have as an output. In general:

• If you switch to a different product, the old product's stuff should still work if the content is up-to-date. So there's not much you need to do.
• If the content needs to be updated, at that point you rebuild and that can happen in various ways depending on what you have as starting content. There's not going to be a single import option, but there may be ways to mitigate what you have and do incremental updates.

Your content is probably proprietary so if you want to DM me I can look at it outside the community to get a sense of what you have and what you could possibly do.