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Convert Excel Spreadsheets to Markdown Tables

Convert Excel .xlsx and .xls spreadsheets into clean Markdown pipe tables — one table per sheet. Powered by SheetJS, processing runs entirely in your browser with no upload required.

Processing happens 100% in your browser — nothing is uploaded.

100% Local Processing — Your files never leave your device

How to convert Excel to Markdown

  1. Upload: drop your .xlsx or .xls file onto the dropzone, or click to browse.
  2. Process: SheetJS parses each worksheet locally and converts it to a Markdown pipe table.
  3. Download: copy the Markdown or save it as a .md file.

Why Convert Excel to MD with MarkdownForge?

  • Every sheet becomes a properly formatted Markdown table

    SheetJS reads the workbook structure and maps each worksheet to a GitHub-flavoured Markdown pipe table with correct column alignment. Multi-sheet workbooks produce multiple tables, each labelled with the sheet name.

  • 100% local — your spreadsheet never leaves your device

    SheetJS runs entirely in a browser Web Worker. No file is transmitted to any server, making this safe for financial models, client data, and any spreadsheet you cannot share externally.

  • No Excel installation required

    The converter reads the binary .xlsx format natively in JavaScript. You do not need Microsoft Excel, LibreOffice, or any other office suite installed on your machine.

Excel to Markdown — FAQ

Does it support both .xlsx and .xls formats?

Yes. SheetJS handles both the modern .xlsx (Office Open XML) and the legacy .xls (BIFF) binary format without any additional configuration.

What happens with multi-sheet workbooks?

Each worksheet is converted to a separate Markdown table. The sheet name is used as a heading above each table so you can identify which data came from which sheet.

Are formulas converted or just their values?

Only the computed cell values are exported, not the formula expressions. This gives you the actual data rather than raw formula strings.

Is my Excel file uploaded to a server?

No. SheetJS runs entirely in your browser inside a Web Worker. Your spreadsheet never leaves your device.

Can it handle merged cells?

Merged cells are expanded to their individual cell values in the output. Markdown tables do not support cell spanning, so the content is placed in the first cell of the merged range.

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