How to convert all my Account into Contacts?

Hello guys,
I’ve installed and setup SuiteCRM, it’s super powerful. But I’ve made a major mistake right after install and I had no idea about it until when I tried to assign tasks with a certain account.
I found out that’s it’s not possible.
So my question is how can I convert all the accounts I’ve imported into contacts?
OR actually, if you know how to assign a task to an account would be the best! :slight_smile: