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FreeConvertter

XLSX to HTML Converter

Publish spreadsheet data as clean HTML tables that open in any browser.

XLSXto

or drag and drop them here · up to 50 MB per file

Your files are processed on this device and never uploaded.

Instant conversion

There is no upload or server queue, so conversion starts the moment you drop a file and finishes as fast as your device can process it.

Your files stay private

Files are processed entirely inside your browser. They are never sent to, stored on, or seen by any server.

Nothing to install

Works on Windows, macOS, Linux, Android and iOS in any modern browser. No software, no extensions, no account.

How to convert XLSX to HTML

  1. 1

    Click "Choose XLSX files" or drop your Excel workbooks onto the converter.

  2. 2

    Optionally choose "First sheet only" in "Options".

  3. 3

    Click "Convert" to build the page on your device.

  4. 4

    Click "Download" to save the .html file.

Why convert XLSX to HTML?

  • Publish data — put price lists, schedules or results on a website.
  • Share read-only — anyone can view the tables in a browser without Excel.
  • Email and documentation — paste tables into tools that accept HTML.

How the conversion works

Each selected sheet is rendered to an HTML table with SheetJS, cleaned of anything unsafe, and placed under a heading with the sheet’s name in a single, self-contained page.

What is an XLSX file?

XLSX is Microsoft Excel’s default workbook format since 2007, based on the Office Open XML standard. A workbook can contain several sheets, each a grid of cells holding text, numbers, dates or formulas, together with formatting, charts and comments. Inside, it is a ZIP archive of XML files.

XLSX opens in Excel, Google Sheets, LibreOffice Calc, Apple Numbers and Hancom Cell. Files ending in .xlsm are the same format with macros enabled.

What is an HTML file?

HTML (HyperText Markup Language) is the language of web pages. An HTML file is plain text with tags such as <h1> for headings, <p> for paragraphs and <img> for pictures. Any web browser can open it, on any operating system, without extra software.

HTML is a convenient format for reading and sharing documents: it keeps headings, lists, tables, links and emphasis, and a single file can even carry its images embedded inside it.

Frequently asked questions

What does the page contain?

One HTML table per sheet, each with the sheet name as a heading, using the values as displayed in Excel. Merged cells are kept as merged table cells.

Is the Excel formatting kept?

No. Colours and fonts are replaced by a clean, readable table style, which makes the HTML easy to restyle for your site.

Can I paste the tables into a website?

Yes. The tables are plain, clean HTML without scripts or inline styles.

Is my workbook uploaded?

No. The page is created in your browser.

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XLSXCSVExport every sheet of an Excel workbook as clean CSV that opens correctly everywhere.XLSXJSONTurn spreadsheet rows into JSON for APIs, apps and scripts.XLSXODSConvert Excel workbooks to the open OpenDocument format.EPUBHTMLTurn an e-book into one self-contained web page that any browser can open, with its images built in.DOCXHTMLTurn a Word document into a clean, self-contained web page — no messy Word markup.MarkdownHTMLTurn a Markdown file into a clean, readable web page you can open, share or publish.