1. Go to Calls, and select the call holding the reviews
2. Click the Reviews tab from the top bar
From here, you will see the list of all reviews to date including details such as: submission name and link, reviewer's name, review status, rating, when the review was assigned and modified and if it has been completed with a link to the review.
3. Click Export All
4. From the pop-up confirmation window, click Export
5. You will receive the following confirmation message. The review report will be sent to your email and attached as a CSV file.