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Convert XLSX to GML

Convert XLSX (.xlsx) to GML (.gml) online for free. Fast, accurate geospatial format conversion with CRS reprojection.

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Upload your XLSX file and get GML output in seconds.

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About XLSX

XLSX is the Microsoft Excel Open XML spreadsheet format. When it contains coordinate columns, it can be used as a source for geographic point data.

Extensions: .xlsx

Software: Microsoft Excel, Google Sheets, LibreOffice Calc, QGIS, Python/openpyxl

Limitations: No built-in geometry type — requires coordinate columns. No CRS metadata. Limited to tabular point data.

About GML

Geography Markup Language (GML) is an OGC XML-based format for expressing geographic features. It is often used for data exchange between government agencies and in INSPIRE-compliant systems.

Extensions: .gml

Software: QGIS, ArcGIS, GeoServer, Deegree, GDAL/OGR

Limitations: Verbose XML format — large file sizes. Complex schema definitions. Slower to read/write than binary formats.

How to Convert XLSX to GML

Upload your XLSX file (.xlsx)
Review detected layers, features, and coordinate system
Select GML as your output format
Choose a target coordinate reference system (optional)
Click Convert and download your GML file

Frequently Asked Questions

How do I convert XLSX to GML?

Upload your XLSX file to ConvertGeoData, review the detected data, select GML as the output format, and click Convert. Your converted file will be ready to download in seconds.

Is the XLSX to GML conversion free?

Yes! ConvertGeoData offers free conversions for all users. No account required for basic conversions. Sign up for a Pro or Business plan for higher limits.

Can I change the coordinate system during conversion?

Yes. ConvertGeoData automatically detects your source CRS and lets you reproject to any EPSG coordinate reference system during conversion.

What software can open GML files?

GML files can be opened with QGIS, ArcGIS, GeoServer, Deegree and more.