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XLSX to CSV: convert an Excel file to CSV
Upload your Excel file and the CSV from the first sheet appears right away.
Drag and drop an Excel file here
Your file never leaves this browser.
Why use this XLSX to CSV tool?
- Supports .xls and .xlsx. Handles both the older and the modern Excel format.
- Instant result. Change the format without installing Excel.
- Private by design. Your browser reads and converts the file. Nothing uploads.
How to convert Excel to CSV
- Upload your .xlsx or .xls file.
- The CSV from the first sheet appears.
- Copy the result or download it as .csv.
When you need this tool
A report arrives as an Excel file, but the target system, such as an import tool or a script, accepts only CSV.
Developers convert Excel data to CSV so their code can process it more easily, or so the file can live in version control.
Frequently asked questions
Does the tool convert every sheet in my workbook?+–
No. Only the first (leftmost) sheet converts to CSV.
Do formatting and formulas carry over?+–
No. CSV stores only plain text and numbers. Formulas convert to their calculated values, and colors and borders do not carry over.
Does the tool support the older .xls format?+–
Yes. It supports both the older .xls and the modern .xlsx.
Is my file uploaded to a server?+–
No. Your browser reads and converts the file.