I am after a extension that can import attributes.

Magento 2s default behaviour is add attribute Name and attribute value once added they can then be imported by csv. 

Is there an extension that can add them on the fly? maybe even just add the values.

I was looking at the import products extension which looks great as it can also import everything and can be set on a cron job.

The question I need to know is if I have an attribute that was not on magento in the first place would that extension add it or not?

Or do you have any other attribute extensions?

Regards

Gary