In the top menu, select "File", "Export To" and then "Excel...". Click on the "Next..." button and save the file to your local disk.
You can now upload the previously saved file to our platform. Go to the "Upload File" page by clicking the button below.
After your file was processed, you can download it. Simply open the file and copy the column with the added gender information back to your original file.
Feel free to contact us at any time.