What does "Download as CSV" mean?
You have the ability to download all of the Form Ratings into a spreadsheet to use for your own research purposes or to filter the ratings even further. Simply click on the "Download all races as .csv file" link and the ratings will be downloaded in CSV format for you.
These can then be imported into Excel, Google Sheets etc for your own use.
If you want to only export a certain race to a spreadsheet, there's a link to download/export ratings for each race under the race. Simply click on "Export to spreadsheet".