Turn XLSX into HTML tables for websites, emails, and documentation. Single-sheet workbooks download as HTML, multi-sheet as a ZIP.
Accepted format: .xlsx
Size up to 100MB
Files deleted automatically
Secure upload (SSL)
Convert your Excel file in 3 simple steps. Fast, secure, and free.
Drag and drop your .xlsx file or click to browse. Maximum size is 100MB.
We export each sheet as an HTML table. For multi-sheet workbooks, we package all sheets into a ZIP.
Your converted file will download automatically in your browser.
We open your XLSX with LibreOffice, a trusted open-source office suite, and export HTML tables that are easy to use on websites, emails, and documentation.
Single-sheet workbooks download as one HTML file. Multi-sheet workbooks download as a ZIP with one HTML file per sheet, while keeping tables and common number formatting.
No installation and no account required. Convert files up to 100MB, and temporary files are cleaned up automatically after the download.
A simple overview of the features and benefits of the formats
XLSX is a spreadsheet format developed by Microsoft, serving as the default file type for Excel since Office 2007. Built on the Open XML standard, XLSX files are stored as compressed ZIP archives, which reduces file size and allows faster data processing. The format supports spreadsheets, charts, graphs, complex mathematical formulas, and large data sets. XLSX files can be opened not only in Microsoft Excel but also in Google Sheets, LibreOffice, and Apple Numbers.
HTML (HyperText Markup Language) is an open standard markup language used to create web pages and formatted emails. HTML files contain structured code with tags that define the layout, headings, text, links, images, and other content elements. Web browsers such as Chrome, Firefox, Safari, and Edge interpret this code to display pages as intended. HTML files can be viewed in any browser, edited in text editors, or created using specialized HTML editors and online tools.
Answers about XLSX to HTML export, multi-sheet ZIPs, styling, and privacy.
Yes. You can convert XLSX to HTML for free, with no subscriptions.
When processing a large file with multiple sheets, conversion may take up to 15 minutes.
We preserve the table layout, number formats, and common cell styling. Some advanced Excel-only effects may render differently in browsers.
You'll receive a ZIP archive containing one HTML file per sheet. Single-sheet workbooks download as a single HTML file.
HTML does not store Excel formulas. We export the calculated values visible in cells.
You can upload and convert spreadsheets up to 100MB.
Yes. Uploads are protected with SSL encryption, and converted files are deleted automatically after download.
Our Desktop Converter processes multiple files offline without limits