Convert Excel to YAML
Free · no signup · no watermark · runs in your browser · batch up to 20 files
Drop your Excel files here
or click to choose — up to 20 at once
Select Excel fileThis runs entirely in your browser. The file never leaves your machine and nothing is uploaded. Need test files? Try our free sample files.
This free Excel to YAML converter turns your .xlsx files into .yaml files.
This conversion runs entirely in your browser. The file is never uploaded, which makes it instant, private and usable on work files you would not want to send to a stranger's server.
How to convert Excel to YAML
- Drop your Excel files onto the box above, or click it to choose from your computer. Up to 20 at once.
- The conversion starts as soon as the file is read — there is nothing to configure.
- Download each converted file, or pick them up one by one from the list.
What changes when you convert Excel to YAML
Both formats can represent the same content here, so nothing meaningful is lost. Expect the file size to change, since Excel and YAML compress differently.
Excel and YAML compared
| Excel | YAML | |
|---|---|---|
| Full name | Microsoft Excel Workbook | YAML Ain't Markup Language |
| Extension | .xlsx, .xls | .yaml, .yml |
| MIME type | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | application/yaml |
Excel: What most business data actually lives in. Carries types, formulas and multiple sheets, none of which survive a trip through CSV — which is exactly why people need to convert between them rather than just renaming the file.
YAML: A human-readable superset of JSON used for configuration almost everywhere — Docker, Kubernetes, CI pipelines. Indentation is significant, which is both the appeal and the usual source of errors.
Frequently asked questions
How do I convert Excel to YAML?
Drop your .xlsx file onto the box on this page and the .yaml file is ready to download in a second or two. There is no signup, no email, no watermark and no file limit beyond what your browser can hold in memory.
Is this Excel to YAML converter free?
Yes, completely, with no account, no trial and no watermark on the output. We are a consultancy and these tools exist because we needed them ourselves; there is nothing to buy on this page.
Are my files uploaded anywhere?
No. This conversion runs entirely in your browser using JavaScript, so the file never leaves your computer. You can disconnect from the network after the page loads and it will still work.
Will converting to YAML reduce the quality?
Both formats can represent the same content here, so nothing meaningful is lost. Expect the file size to change, since Excel and YAML compress differently.
Can I convert several Excel files at once?
Yes, up to 20 files in one go. Drop them all onto the box together and each one appears in the results list with its own download button.
Found a problem, or something that could be better? We read every message and we fix things quickly.
Related converters
Going the other way? Convert YAML to Excel.
Other Excel conversions
Other ways to get YAML
All 92 converters · Free sample files to test with · All free tools