I'm a journalist using mapping for dataviz in stories. I've found Carto easy to use, but I'd like to use Tableau for a project involving US Census Bureau's school district TIGER files. It's easy to get the file and convert to KML. Thought I could then convert to CSV and upload into Tableau, but for some reason, KMLCSV Converter isn't working on my computer. (Don't know why -- I have Java Runtime Environment.) So my next thought was QGIS. I've installed it and tried to convert a few times according to instructions found online, but I end up with files that don't look right. I'll paste in screenshots of two results I got below.
NOTE: The error is not in QGIS but in the workaround provided in this Tableau tutorial: https://community.tableau.com/docs/DOC-5831
QGIS can read the zipped school district shapefiles from TIGER without unzipping
Simply right-click the layer, choose 'Save As', and choose the Format of Keyhole Markup Language (KML).
Also ensure the output coordinate system is in EPSG:4326 (LAT/LON coordinates)
You should get a valid KML file with the attributes preserved.