Convert Excel to CSV
Free Excel to CSV converter that runs entirely in your browser. No uploads, no signup required.
Drop Excel files here
or browse your device. Free, no signup required, no watermarks.
Files are processed on your device, never uploaded
Three steps
How to convert Excel to CSV
Add your files
Drop Excel files into the box above, or click it to browse. Add several to batch convert.
Convert
CSV is already selected as the output. Hit Convert. Your browser does the work locally.
Download
Save each converted CSV file. Pro ZIPs whole batches in one click.
Microsoft Excel spreadsheet
Excel
XLSX is the Microsoft Excel spreadsheet format with formulas, multiple sheets, and rich formatting.
Comma-separated values
CSV
CSV is the simplest spreadsheet format: rows of comma-separated values that Excel, Sheets, and databases all read.
Why convert Excel to CSV?
XLSX is the Microsoft Excel spreadsheet format with formulas, multiple sheets, and rich formatting. CSV is the simplest spreadsheet format: rows of comma-separated values that Excel, Sheets, and databases all read. Converting from Excel to CSV gets you the best of the target format wherever Excel falls short, whether that's compatibility, file size, or what your apps and devices can open. With FormatFusion the switch takes seconds and your files stay on your device the whole time.
Questions
Excel to CSV: common questions
Is this Excel to CSV converter free?
Yes. It is completely free with no watermarks and no account required, for files up to 1 GB each. Convert one file or a hundred.
Is it safe to convert Excel files here?
Safer than any upload-based converter. The conversion runs locally in your browser, so your Excel files are never sent over the internet and never touch a server.
Will I lose quality converting Excel to CSV?
No. This conversion preserves your content, and CSV output keeps everything the format supports.
Can I convert multiple Excel files at once?
Yes. Free converts up to three Excel files at a time. FormatFusion Pro batches without limits and downloads whole runs as a single ZIP.
Does it work on iPhone and Android?
Yes. FormatFusion runs in any modern mobile or desktop browser. No app install needed.