Use our free excel to csv converter to turn your spreadsheet into a CSV file right in your browser. No signup, no software to install, no watermark — upload your file, pick the worksheet, and download the result in seconds. Your file never leaves your device because the whole conversion happens locally on this page.
🔒 100% free & private — your file is converted in your browser and never uploaded to any server.
How to convert Excel to CSV file
- Upload your Excel file — Drag your file into the box above or click to browse. We accept .xlsx, .xls files.
- Choose the worksheet — If your file has several worksheets, pick the one to convert. A preview of your data appears instantly.
- Convert and download — Click "Convert to CSV" — your CSV file downloads immediately, ready to use.
Why convert Excel to CSV?
CSV is the universal plain-text format that almost every database, app and programming language can read.
- Import your spreadsheet data into databases, CRMs and analytics tools that expect CSV.
- Strip away formatting and get a lightweight plain-text file that works everywhere.
- Prepare data for developers — CSV is the simplest format to parse in any programming language.
Which formats can you convert from?
XLSX to CSV
Upload a modern .xlsx workbook — the most common Excel format — and get your CSV in one click.
XLS to CSV
Have an older .xls file? It converts just as easily; legacy Excel formats are fully supported.
Will my spreadsheet layout stay intact?
Your data stays intact: every row and column of the worksheet becomes a row and field in the CSV. Formatting, colours and formulas are not carried over, because CSV stores plain data only.
Is it safe to convert Excel files online?
Yes. Unlike many online converters, this tool does not upload your file anywhere — the conversion runs entirely in your browser, so sensitive business data stays on your own device. (comma-separated values: comma-separated values.)
Tips for a perfect excel to csv conversion
- Only the selected worksheet is converted — split multi-sheet workbooks first if you need every sheet.
- Formulas are converted to their calculated values; the formulas themselves are not kept.
- Cell formatting, colours and charts are not part of CSV — only the raw data travels.
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Frequently asked questions
Is this Excel to CSV converter really free?
Yes. The converter is 100% free with no signup, no watermarks, and no limit on the number of files you convert.
Are my files uploaded to a server?
Your file is converted entirely in your browser with JavaScript. Nothing is uploaded to any server, so your data never leaves your device.
Which Excel formats can I convert from?
You can upload .xlsx, .xls files. The active worksheet is converted into a clean CSV file.
Will my data stay intact?
Yes. All cell values from the worksheet are carried over. Cell styling such as colours and fonts is not part of CSV file formats, so only the data itself is converted.
Does it work on mobile?
Yes. The converter runs in any modern browser on desktop, tablet and mobile — no app or software installation needed.