From the dashboard, click on Moderation from the left menu panel.
2. Click on Manage Reviews from the list.
3. Download the sample CSV file given and check to see if it's similar to what you have. If not, you can copy the details from your file unto the sample file provided.
After, click on Import CSV file to upload your file
4. Click on Save Reviews to save the file upload.
Done! Head over to the Moderation page to moderate the just added reviews.