What is the Tools69 XLSX Editor?

A free online XLSX editor that lets you edit Excel spreadsheet data directly in your browser without Microsoft Office.

How do I edit XLSX files online?

Upload an XLSX file. The data loads in an interactive table where you can click cells to edit values.

Can I download the edited file?

Yes. After editing, click Download XLSX to save the modified spreadsheet.

Are my files uploaded to your servers?

No. All processing happens locally in your browser.

Is the XLSX Editor free?

Yes. It is completely free with no registration required.

Is there a file size limit?

There is no fixed file size limit. Since all processing happens directly in your browser, the maximum file size depends on your device's available memory and browser capabilities. Most modern devices handle large files without any issues.

XLSX Editor

Free online XLSX editor to edit Excel spreadsheet data instantly.

Drag & drop your file here, or

🔒 Your files never leave your device and are never uploaded to our servers.

Frequently Asked Questions

XLSX Editor

Frequently Asked Questions

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XLSX Editor

Frequently Asked Questions

Related Tools

Spreadsheet Tools

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Document Viewers

Images & Media