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Convert XLS to XLSX

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

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Upload your XLS file and get XLSX output in seconds.

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About XLS

XLS is the legacy Microsoft Excel binary spreadsheet format. It can be used as a geographic data source when it contains latitude/longitude columns.

Extensions: .xls

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

Limitations: Legacy format with 65,536 row limit. No geometry support. No CRS metadata. Read-only in GDAL.

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.

How to Convert XLS to XLSX

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

Frequently Asked Questions

How do I convert XLS to XLSX?

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

Is the XLS to XLSX 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 XLSX files?

XLSX files can be opened with Microsoft Excel, Google Sheets, LibreOffice Calc, QGIS and more.