How it works
How to use Excel to CSV online
- Choose the XLSX or XLS workbook you want to convert.
- Enter the worksheet name, or leave it blank to use the first sheet.
- Convert the selected sheet in your browser, preview the rows, and download the CSV.
Data tool
Export one Excel sheet to CSV.
Processing runs on your device when supported. Network requests may load the app and supporting assets. Privacy details
Your file stays in this browser.
How it works
Overview
Read an Excel workbook in your browser and export the worksheet you need as CSV. Enter a sheet name when the workbook has multiple tabs, or leave it blank to use the first sheet.
Choose a Excel or spreadsheet file
CSV files
1 file · 50 MB max
Best for
Processing
PrivConvert uses SheetJS for this workflow. 1 adjustable setting. No special browser capability is required for typical inputs
Your file stays in this browser while the tool runs.
Related tools
Guides & tests
CSV to Excel Without Losing Leading Zeros — Preserve identifiers such as 00123, distinguish text from numbers, and verify the downloaded workbook with a small public sample.
FAQ
Yes. This tool is free to use in your browser and does not require an account.
Excel to CSV uses SheetJS in the browser. Selected input is processed on your device when the required browser features are available. Application, library, model, security, and limited analytics requests may use the network.
1 file · 50 MB max. Browser memory and format support also limit the files this tool can process.
Enter a worksheet name to select it. If the field is blank, the tool exports the first worksheet.
No. CSV stores plain table values only, so workbook formulas, styles, charts, and multiple sheets are not preserved.