Tax class problems

Hi,

I’m setting up my product files for importing. Just having problem when experimenting with the import of a product.

I have three possible tax classes in the picklist:

Standaard
Reduced Rate
Zero Rate

So I name the column tax_class and put Reduced Rate in the appropriate cell. Woocommerce doesn’t read this somehow. All other stuff works but not this. What to do?

Thanks in advance for helping! Bart

https://www.ads-software.com/plugins/woocommerce-csvimport/