This doesn't implement CSV, but JSON, XML and more. You can convert your CSV easily to JSON and XML (just search for an online tool or something or write it yourself :-) ).
If you want a ready-to-use datatype for CSV, you will have to write it yourself!
Filling out dropdown list datatype from csv file
How can I fill out a drop down list datatype from a csv file I upload in to my umbraco back end?
I can't manually do this at the values need to able to change without someone spending hours adding in each one by hand.
You could try to use nuPickers https://our.umbraco.org/projects/backoffice-extensions/nupickers
This doesn't implement CSV, but JSON, XML and more. You can convert your CSV easily to JSON and XML (just search for an online tool or something or write it yourself :-) ).
If you want a ready-to-use datatype for CSV, you will have to write it yourself!
Can vouch for nupickers, it's great. Though we currently can't get it to work when debug is set to false...
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