Convert XLSX to CSV
Extract CSV Data from an Excel File
Need to use Convert XLSX to CSV right now?
Reads the uploaded workbook directly in your browser — no Excel install needed to get the raw CSV data out.
Features
- Runs entirely in your browser
- Privacy-first — your data is never uploaded
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
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About Convert XLSX to CSV
CSV is the universal format most tools, scripts, and databases expect for tabular data — but data usually starts life in Excel, where opening and re-saving as CSV means launching a desktop app just to change a file format, and re-saving strips formatting anyway. Extracting the raw data is often all that's actually needed.
This tool reads an uploaded .xlsx or .xls file directly in your browser and converts its first sheet into standard CSV text — the same format Excel's own "Save As CSV" produces, but without opening Excel at all. The result is shown as plain text you can copy directly or use anywhere a CSV file is expected.
This converts the first sheet in a workbook — if your spreadsheet has multiple sheets and you need a different one, that sheet needs to be the first one in the file, or extracted to its own file first. Formatting, formulas (their computed values are kept, not the formulas themselves), and charts are not preserved, since CSV is a pure data format with no room for any of that.
How it works
- Upload your Excel file. Choose a .xlsx or .xls file from your device.
- Review the CSV output. See the first sheet's data converted to plain CSV text.
- Copy the result. Copy the CSV text for use anywhere a CSV format is needed.
Examples
Simple spreadsheet
Input
An .xlsx file with columns Name, Age
Output
name,age Alice,30 Bob,25