Item tax mapped field

Hello,

First I uploaded a paid invoice manually

Then I exported it in order to see the ZOHO provided values in the rows

Then I adjusted my .csv file

But when I upload, I am still getting this message under Item Tax:

Value in the field does not match with the data type supported by us.

In ZOHO exported file it says Zero Rate (exactly as written), I duplicated that, but the system would not allow me to upload.

Please advice how to set the values correctly?