The second step in the spreadsheet process is previewing the results. This allows you to confirm that the correct columns were selected in the previous step and that the data is geocoded as expected.
A green marker means that the accuracy score is 0.8 or greater, any other scores will give a blue marker.
Some blue markers are to be expected, but if all of the markers are blue, it can be a sign of issues with geocoding the spreadsheet. Feel free to contact us if you need any help with this.