XLSX, the Excel workbook
XLSX is the Microsoft Excel format: a workbook with one or more sheets, data types and formatting.
Strengths: It is what almost any office expects.
Limits: Other apps and databases usually ask for CSV to import data.
Data
Convert XLSX to XML
Turn your XLSX files into XML in seconds. Everything happens in your browser: nothing is uploaded to any server.
XLSXXML
Drag your files here
Or paste them with Ctrl+V. They never leave your device.
Why convert XLSX to XML?
Other apps and databases usually ask for CSV to import data. As XML it fits systems that expect tagged data.
About the formats
XML, tagged data
XML organises data in nested tags with attributes, like HTML but for data.
Strengths: It is the standard for many government systems, e-invoices and business integrations.
Limits: It is verbose and heavier than JSON for the same information.
How to convert XLSX to XML
- 1Drop your XLSX files in the box, paste them or pick them from your device.
- 2Check that the target is XML and open the options if you want to adjust it.
- 3Press “Convert” and download each XML, or all of them in a ZIP.
Frequently asked questions
Is my XLSX uploaded to a server to turn it into XML?
No. The XLSX to XML conversion runs entirely in your browser, with code downloaded from this site and executed on your device. You can check it in the Network tab of the developer tools or by going offline after the page loads.
Is there a size limit?
Up to 1 GB on desktop and about 200 MB on mobile, although a huge spreadsheet may take a few seconds.
Can I convert several XLSX files at once?
Yes. Drop as many XLSX files as you like: several are converted at the same time, depending on your processor cores, and when they finish you can download each XML or all of them in a ZIP.