By December 2019 the powerful and versatile Google Fusion Tables will not be available anymore as announced by Google
If you were using Fusion Tables for Mapping, you can migrate your tables to Google Sheets and then use the Mapping Sheets add-on to build your maps, in a rich feature and affordable Mapping solution, while keeping your data in your Google Drive.
Download as CSV > Open with Google Sheets > Add-ons ... Start Mapping > Select your headers > BUILD and VIEW your map.
See below how the migration might be, step by step in more details ...
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