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How to Convert KML to CSV
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When Do You Need to Convert KML to CSV?
Converting KML to CSV takes placemarks out of Google Earth and puts them into a spreadsheet, which is where lists of locations are usually easier to manage, sort and join with other data.
What Happens When You Convert KML to CSV
GDAL reads the KML and writes its features as rows. Placemark names, descriptions and extended data become columns, and point coordinates become longitude and latitude columns. Lines and polygons do not fit this shape well, since their geometry is a long list of coordinates that has to be collapsed into a single cell. KML styling, folder structure and any embedded imagery have no place in a table and are dropped.
Worth knowing before you convert
HTML formatted descriptions, which Google Earth balloons often use, arrive as raw markup in a cell and usually need cleaning up.
About KML and CSV
application/vnd.google-earth.kml+xml
KML is a markup language used to represent geographic data for visualization in tools like Google Earth. It supports placemarks, paths, polygons, and overlays, enabling rich geospatial presentations.
text/csv
CSV is a simple text-based format for storing tabular data using commas as delimiters. It is highly portable and supported by virtually all databases, spreadsheet tools, and programming languages. CSV does not support formatting or formulas but excels at data interchange and exports.
Conversion Notes
GIS format conversion preserves geometry and attribute data, but coordinate reference systems may differ between KML and CSV. Our converter re-projects coordinates where needed. Complex curved geometries may be approximated as straight-line segments in formats that don't natively support them. Attribute field names may be truncated in legacy formats with character limits.
Frequently Asked Questions
Not well. Polygon geometry collapses into one cell as text. The format suits placemarks and points.