XLSX to CSV

Workspace Tools · Browser tool · Text

Upload an Excel workbookLocal only

Files stay in your browser.

Upload workbook

Drop an .xlsx or .xlsm file here, then pick the worksheet you want to export as CSV.

Max 25.0 MB / browser-only conversion

CSV output

No workbook loaded

Choose an Excel workbook to preview a worksheet and export it as CSV.

Learn more about this tool

What is an XLSX to CSV Converter?

An XLSX to CSV converter extracts the data from an Excel workbook (.xlsx or .xls) and saves each worksheet as a separate, downloadable CSV file. This free tool runs entirely in your browser — your file is never uploaded to a server, and no sign-up is required.

CSV files are universally compatible: they open in any spreadsheet application, can be imported into any database or data tool, and are easy to parse programmatically. Converting Excel to CSV is the fastest way to unlock data that is locked inside a workbook.

Who Is This Tool For?

Developers — convert Excel exports from client systems into CSV for import scripts, ETL pipelines, or API fixtures.
Data analysts — get your Excel data into pandas, R, or any analytics tool that works best with flat CSV files.
Database administrators — prepare Excel data for bulk import into PostgreSQL, MySQL, SQLite, or other databases.
Business users — share a single worksheet from a multi-tab workbook as a lightweight CSV without exposing the whole file.
Automation engineers — convert Excel reports to CSV as a preprocessing step for automated workflows and bots.

Common Use Cases

A client sends you a report as an Excel file and you need the data as CSV for your database import script.
You have a multi-sheet workbook and want to extract just one worksheet as a CSV without opening Excel.
You need to load spreadsheet data into pandas, R, or a data visualisation tool that prefers CSV over .xlsx.
You want to version-control tabular data in a git repository — CSV is diff-friendly, XLSX is not.
You are preparing a bulk import for an e-commerce platform, CRM, or ERP that accepts only CSV uploads.

How to Convert XLSX to CSV

Drag and drop your .xlsx or .xls file onto the upload area, or click to browse for it.
The tool reads the workbook and lists all available worksheets.
Select the worksheet(s) you want to export, or download all of them at once.
Click Download CSV to save the file to your device.

Your Excel file is processed entirely in your browser using WebAssembly. It is never uploaded to a server.

What is an XLSX to CSV Converter?

Who Is This Tool For?

Developers — convert Excel exports from client systems into CSV for import scripts, ETL pipelines, or API fixtures.

Data analysts — get your Excel data into pandas, R, or any analytics tool that works best with flat CSV files.

Database administrators — prepare Excel data for bulk import into PostgreSQL, MySQL, SQLite, or other databases.

Business users — share a single worksheet from a multi-tab workbook as a lightweight CSV without exposing the whole file.

Automation engineers — convert Excel reports to CSV as a preprocessing step for automated workflows and bots.

Common Use Cases

A client sends you a report as an Excel file and you need the data as CSV for your database import script.

You have a multi-sheet workbook and want to extract just one worksheet as a CSV without opening Excel.

You need to load spreadsheet data into pandas, R, or a data visualisation tool that prefers CSV over .xlsx.

You want to version-control tabular data in a git repository — CSV is diff-friendly, XLSX is not.

You are preparing a bulk import for an e-commerce platform, CRM, or ERP that accepts only CSV uploads.

How to Convert XLSX to CSV

Drag and drop your .xlsx or .xls file onto the upload area, or click to browse for it.

The tool reads the workbook and lists all available worksheets.

Select the worksheet(s) you want to export, or download all of them at once.

Click Download CSV to save the file to your device.

Your Excel file is processed entirely in your browser using WebAssembly. It is never uploaded to a server.