I thought the API is out, so it should be easy enough.
Simply create a new object for every row, assign type as Human, create a new Relation for every column and use the data to populate it.
The two things to figure out are where&how objects are stored and what formatting details Anytype likes for objects. It doesn’t even need to be a plugin, a simple script would do. (Though, of course, it would be nice to see it integrated.)
On that note, I saw the other day a new piece of software called Dex that does exactly what brought me over to Anytype. Except that it’s a cloud-based software-as-a-service, so it both costs a hefty monthly subscription and will go offline once the startup company fails in a couple of years.
Once Anytype finally gets a functioning calendar (& the ability to set reminders+notifications) then making it into a personal CRM will be super easy. That, however, is trickier than a script turning .CSV rows into objects…