Convert XLSX to KML — Free
Upload your XLSX file and get a KML in seconds. No account, no watermark.
How to convert XLSX to KML
Use BoltConverter to quickly turn your Excel XLSX files into KML format online. This free tool helps you convert spreadsheet data, like geographic coordinates, into a format viewable in mapping applications.
Your files are processed securely on our servers and deleted right after conversion. There is no software to install, just upload your file and get your KML output.
Upload your XLSX file
Click 'Choose File' and select the Excel XLSX document you want to convert.
Start conversion
Press the 'Convert' button to begin the conversion process.
Wait for processing
The tool will process your file on our servers.
Download KML file
Once complete, click 'Download' to save your new KML file.
Frequently asked questions
Is BoltConverter free to use?
Yes, BoltConverter is a completely free online tool for converting Excel to KML.
How long does BoltConverter store my files?
Your uploaded files are deleted from our servers immediately after the conversion is finished.
What is the maximum file size for conversion?
You can convert Excel files up to 100 MB in size.
Will the KML output quality be good?
BoltConverter accurately translates your Excel data into the KML format.
Can I convert multiple Excel files at once?
No, BoltConverter processes one Excel file to KML at a time.