You can copy reviews from a product to another in a few seconds without using CSV.
Note: This feature available on paid plans only.
STEP 1: Log in to your Ryviu account, open Products sections
STEP 2: Clicking on the copy product reviews icon.
STEP 3: Search the product in which you want to copy reviews and click Copy reviews button.
If that product does not have in your Products list in Ryviu then please just add the product handle and click the Copy reviews button.
If you do not know how to get the product handle, you should take a look at this article.
If you have any queries, please let us know via email or live chat.