Convert XLS to Markdown

Convert XLS to Markdown instantly in your browser. Your spreadsheet data is processed on your device and never uploaded.

Your file never leaves your device.

How to convert XLS to Markdown

A Markdown table is perfect for README files, wikis, documentation and AI prompts. This tool reads the XLS with SheetJS, a proven spreadsheet engine, directly in your browser and writes a correct Markdown file with the right encoding, escaping and structure. There are no rows to copy by hand and no data leaves your computer.

Step 1: Choose your XLS file
Drag and drop a .xls file onto the converter or click to browse. It works on desktop, tablet and phone.
Step 2: Automatic conversion
Rows and columns are read and written as Markdown in a fraction of a second.
Step 3: Download the Markdown
Save each result individually, or download everything as a single ZIP when you convert several files.

Good to know

Cell values are exported as displayed; formulas are replaced by their calculated results.
Each sheet is exported in order, so multi-sheet workbooks keep all their data.

Why use this XLS to Markdown converter?

A Markdown table is perfect for README files, wikis, documentation and AI prompts.
Handles large files with thousands of rows.
Correct quoting and UTF-8 encoding.
100% local: spreadsheets often contain personal or financial data, and here it never leaves your device.

Is it free?

Yes. Converting XLS to Markdown is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device.

Is my file uploaded?

The XLS file is processed entirely in your browser. It is never uploaded, never stored and never seen by anyone, so this is safe for confidential files.

About the formats

What is XLS?

XLS is the binary workbook format used by Microsoft Excel up to version 2003. It stores sheets, formulas, formatting, charts and macros in a single file. Each sheet is limited to 65,536 rows and 256 columns, a limit that the XML-based XLSX, the default since Excel 2007, raised considerably.

Use XLS only when an old version of Excel or a legacy system requires it. For new work, XLSX handles far larger sheets and is less prone to corruption, and CSV is the simpler choice when you only need to move raw data.

XLS (Excel 97-2003 workbook)

What is Markdown?

Markdown is a lightweight markup language that lets you write formatted documents in plain text using simple symbols. The same file reads clearly as text and renders as styled HTML, making it popular for documentation, README files and notes. It is also widely used to feed clean text to large language models.

Use Markdown for content that should be readable as plain text but publishable with formatting, README files, documentation, wikis, notes and posts. Write it anywhere, and it stays usable forever because the source is plain text.

Markdown

Frequently Asked Questions

Is XLS to Markdown conversion free?

Yes. It is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device.

What happens to formulas when converting XLS to Markdown?

The calculated values are exported. The formulas themselves are not part of the output format.

Is it safe to convert xls to markdown here?

Yes. The work happens on your own device with WebAssembly and browser APIs, so the file is not uploaded at all. You can even disconnect from the internet once the page has loaded.

Do I need to install anything?

No. Everything runs in a modern browser (Chrome, Edge, Firefox or Safari) on Windows, macOS, Linux, Android and iOS. There is no app, plugin or account.

ExcelProcessed locally