Documents conversion
Convert XLSX to Markdown
Updated Jul 2026
XLSX is Excel's spreadsheet format, built for formulas, multiple sheets, and formatting. Markdown is plain text, the format READMEs, wikis, and notes are written in. To convert, each sheet's data becomes a plain text table. Doing it on your own computer means the spreadsheet never has to leave your machine to make the trip.
- Extension
- .xlsx
- Type
- Documents
- Typically
- Spreadsheets
- Extension
- .md
- Type
- Documents
- Typically
- Docs, READMEs, notes
Convert XLSX to Markdown on your own computer. Nothing uploads.
How to convert XLSX to Markdown
- Open Morphjet and drag in the XLSX file, or a whole folder of them.
- Choose Markdown as the output format.
- Convert. Each sheet becomes a Markdown table written to a local file, and nothing leaves your machine.
XLSX vs Markdown: what actually changes
| XLSX | Markdown | |
|---|---|---|
| File size | Larger, a compressed binary format | Small, plain text |
| Formulas | Yes, calculates live | No, only the calculated values remain |
| Multiple sheets | Yes, separate tabs in one file | Each sheet becomes its own table or section |
| Formatting (fonts, colors, borders) | Yes | No, plain text only |
| Opens everywhere | Needs a spreadsheet app | Yes, any text editor, and renders as a table on GitHub and most wikis |
| Readable in a diff or git history | No, binary changes aren't readable | Yes, line by line |
When to convert, and when not to
Convert XLSX to Markdown when you want to drop spreadsheet data into a README, a wiki page, a git-tracked document, or anywhere plain text tables are expected instead of a spreadsheet file.
Keep the original XLSX if you still need the formulas, multiple sheets, or formatting to work, because Markdown only keeps the flat values.
Why not just use an online converter?
Spreadsheets often hold the kind of data people don't want sitting on someone else's server, budgets, client lists, internal numbers. An online converter has to upload the file to convert it, which means that data leaves your hands even if just for a moment. Converting on your own computer keeps the spreadsheet, and whatever is in it, on your machine the whole time.
Questions
Does converting XLSX to Markdown lose anything?
Yes, it loses the formulas (only their calculated values stay), the formatting like fonts and colors, and any charts. What survives is the raw data, laid out as a plain text table.
What happens to a workbook with multiple sheets?
Each sheet gets converted into its own table, one after another, in the same Markdown file. There's no equivalent to Excel's tabs in Markdown, so the sheet names typically become headings above each table.
Will the Markdown table look right in GitHub or a wiki?
Yes. Markdown's table syntax is the format GitHub, GitLab, and most wiki tools already expect, so a converted table renders as a proper grid there without any extra work.
Can I convert XLSX to Markdown without uploading the file anywhere?
Yes. A desktop app like Morphjet reads the file and writes the Markdown output locally, so the spreadsheet never travels over the internet.
Morphjet converts XLSX, Markdown, and 1,800+ other formats, all on your machine. Launching this July.