Excel to Markdown Converter
Drop an .xlsx or .xls workbook and get GitHub-flavored Markdown tables — every worksheet exported with its name as a heading, merged cells expanded, dates and numbers exactly as Excel displays them. Powered by the SheetJS engine running entirely in your browser.
Click to start converting
Go to Pandoc engine — Excel to Markdown output selected automatically
Supported input formats
| Format | Extension | Notes |
|---|---|---|
| Excel workbook (xlsx) | .xlsx | Excel 2007+ format — all worksheets converted in one pass |
| Legacy Excel (xls) | .xls | Excel 97–2003 binary format, fully supported |
| Merged cells | .xlsx | Expanded into repeated values — Markdown tables have no merge syntax |
| Formulas | .xlsx | Converted to their last calculated value, as shown in Excel |
How Excel to Markdown conversion works
Excel workbooks are rich binary or XML packages: multiple worksheets, merged cell ranges, formulas, date serial numbers and display formats. Markdown tables are deliberately simple — rows and columns of plain text. A good converter has to bridge that gap faithfully.
This page uses the SheetJS Community Edition engine to read the workbook: every worksheet is turned into a row grid using the text Excel itself displays (dates like 1/15/26, currency, percentages), merged ranges are expanded so each cell carries the merged value, and empty sheets are skipped. The grid is then converted to GitHub Flavored Markdown pipe tables by the Pandoc engine — all in one pass.
Everything runs locally in your browser tab. The workbook never leaves your device — no uploads, no accounts, no server processing. The SheetJS library itself is only downloaded when you actually drop an Excel file.
Multiple sheets, merged cells and dates
By default every worksheet is exported, each preceded by its sheet name as a heading. If you only need the first sheet, switch the "Worksheets (Excel)" option in the converter panel.
Merged cells have no equivalent in Markdown table syntax, so the converter copies the merged value into every cell of the range — a merged "2026 Sales" header spanning three columns appears in all three columns. This keeps the table rectangular and paste-ready for GitHub, Notion and Obsidian.
Dates, times and numbers are exported exactly as Excel displays them, not as raw serial values — what you see in the spreadsheet is what lands in the Markdown cell.
Who uses Excel to Markdown
Developers and technical writers moving spec tables, pricing matrices and feature comparisons out of spreadsheets into docs-as-code repositories, where Markdown diffs cleanly in git.
AI engineers feeding tabular data to ChatGPT, Claude or a RAG pipeline — pipe tables are the most reliably parsed format for LLMs. Enable the "Optimize for LLMs / AI" option for the compact output profile.
Excel to Markdown FAQ
+Is my Excel file uploaded to a server?
Never. The SheetJS engine runs in your browser tab and the workbook is parsed locally. The Network panel shows no upload traffic during conversion — the library code itself is the only download.
+What happens to merged cells?
Markdown tables cannot express merged cells, so the converter expands them: every cell in a merged range receives the merged value. The resulting table stays rectangular and renders correctly on GitHub, Notion and Obsidian.
+Are formulas converted?
Formulas are exported as their last calculated value — the same text Excel shows in the cell. The formula itself (=SUM(A1:A10)) is not preserved, because Markdown has no formula syntax.
+What about multiple worksheets?
All worksheets are converted in one pass, each preceded by its sheet name as a heading; empty sheets are skipped. Use the "Worksheets (Excel)" option in the converter panel if you only want the first sheet.
+How are dates and numbers handled?
Exactly as Excel displays them — a cell showing 1/15/26 or $1,234.00 lands in the Markdown table as that same text, not as a raw serial number.
+Can I convert Excel to HTML, RST or LaTeX?
Yes. Pick the output format in the converter — the workbook becomes a Markdown table grid first, then the Pandoc engine renders it to your target format, all in your browser.