Convert KMZ files to XLSX, online and free. GISConverter reads your KMZ data locally in the browser and writes a XLSX file so you can work with the data directly in Microsoft Excel — nothing is uploaded, and your data never leaves your computer.
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KML, KMZ, SHP (.zip), GeoJSON, GPKG, GML, GPX, DXF, GeoTIFF, and more
KMZ is a vector GIS format, so it isn't always the format the next tool expects. Converting it to XLSX lets you work with the data directly in Microsoft Excel without redrawing or re-collecting anything. Because GISConverter runs a full GDAL engine in your browser, the geometry and attributes carry across faithfully, and the file never leaves your device.
KMZ (.kmz): A KMZ file is simply a KML document compressed into a ZIP archive, optionally bundling icons, images and overlays alongside it. It is smaller than raw KML and is the format Google Earth exports by default, which makes it the usual way to hand a finished map to someone else.
Excel (XLSX) (.xlsx): XLSX is the modern Microsoft Excel workbook format. Like CSV it holds tabular data, but with typed cells, multiple sheets and formatting. In a GIS context it is read for its attribute columns, with coordinate columns turning rows into mappable points.
Yes. GISConverter is completely free and runs in your browser — no signup, no watermark, and no daily limit.
No. Your KMZ file is read and converted locally on your device with a GDAL engine compiled to WebAssembly, so it never leaves your computer.
XLSX is the modern Microsoft Excel workbook format.
A KMZ file is simply a KML document compressed into a ZIP archive, optionally bundling icons, images and overlays alongside it.
Yes. Output defaults to EPSG:4326 (WGS84 longitude/latitude). Enter any EPSG code, such as EPSG:3857, in the coordinate-system box to reproject on the way out.
