You can export all or a subset of your reviews from the platform by following the below steps.
Go to reviews in the top navigation menu
If you want to export all reviews select the very top checkbox in the reviews table. But if you want to export only specific subset of reviews use the advanced search option and filter the reviews you require and the click the top checkbox
If multiple pages of reviews are found that match your filters then you will see something similar to this:
Click select all if you want to export all reviews that match your filters or just want the current page of reviews shown
Now above the table you will now see a bulk action dropdown click on this and click export
The system will now start exporting the reviews to a CSV file and you will receive an email with the file once it's finished exporting