Convert Excel Spreadsheet to HTML Online Free
Convert Excel Spreadsheet files to HTML to publish tabular data on the web, embed tables in web pages, or migrate spreadsheet content into CMS platforms.
ChangeThisFile converts your Excel Spreadsheet to HTML using LibreOffice on our secure servers, exporting cell data, formatting, and table structure as a web-ready HTML file with styled tables. Ideal for publishing spreadsheet data to websites and web applications. Encrypted upload, automatic file deletion, completely free with no signup required.
Convert Excel Spreadsheet to HTML
Drop your Excel Spreadsheet file here to convert it instantly
Drag & drop your .xlsx file here, or click to browse
Convert to HTML instantly
Excel Spreadsheet vs HTML: Format Comparison
Key differences between the two formats
| Feature | Excel Spreadsheet | HTML |
|---|---|---|
| Format type | Office Open XML spreadsheet (.xlsx) | Web markup language |
| Specification | ECMA-376 / ISO 29500 | W3C HTML Living Standard |
| Primary use | Data analysis, calculations, charts | Web publishing and data display |
| Rendering | Spreadsheet application required | Any web browser, no software needed |
| Calculations | Live formulas and functions | Static values (no live formulas) |
| Interactivity | Charts, filters, pivot tables | Static HTML tables (can add JS) |
| Compatibility | Excel, Google Sheets, LibreOffice | Every web browser, every device |
When to Convert
Common scenarios where this conversion is useful
Publishing data tables on websites
Convert Excel spreadsheet data to HTML tables for direct embedding on websites, blogs, and web portals without requiring visitors to download a file.
CMS and wiki data integration
Import spreadsheet data into WordPress, Confluence, Notion, and other CMS platforms by converting to HTML tables first.
Email campaign data tables
Convert Excel data tables to HTML for inclusion in email newsletters and marketing campaigns using email marketing platforms.
Reporting dashboards
Export XLSX report data as HTML tables for inclusion in web-based reporting dashboards and business intelligence portals.
Static data archival
Convert spreadsheet datasets to HTML for long-term web-accessible archival that requires only a browser to view, preserving data without needing Excel.
How to Convert Excel Spreadsheet to HTML
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1
Upload your Excel Spreadsheet file
Drag and drop your .xlsx file onto the converter, or click to browse. Files up to 50 MB are supported for free.
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2
Server-side conversion with LibreOffice
Your file is securely uploaded and converted on our servers using LibreOffice Calc headless, exporting cell data and formatting as HTML tables with inline CSS styles.
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3
Download the result
Once conversion is complete, click Download to save your .html file. The uploaded file is automatically deleted from our servers.
Frequently Asked Questions
Yes, completely free. Convert XLSX to HTML with no cost, no signup, and no watermarks.
LibreOffice exports an HTML file with HTML table elements representing the spreadsheet data. Cell formatting, colors, and borders are preserved as inline CSS styles.
Formulas are evaluated before conversion. The HTML output contains the computed cell values, not the formulas themselves, as HTML is a static format.
LibreOffice typically exports all sheets, with each sheet represented in the HTML output. The default sheet may be prioritized depending on the export settings.
Charts embedded in the spreadsheet may be exported as image files alongside the HTML. Tabular data from the spreadsheet is exported as HTML table elements.
No. Files are automatically deleted immediately after conversion. Nothing is stored or retained.
Yes. Files are transferred over encrypted HTTPS connections. Your data is protected in transit.
The conversion uses LibreOffice Calc headless on our servers, using LibreOffice's built-in HTML export filter.
Yes. You can extract the table element from the output HTML and embed it within your own webpage, applying your own CSS for styling.
Files up to 50 MB are supported for free conversion.
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