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Excel to CSV Converter

Convert Excel files (.xlsx, .xls) to CSV privately in your browser

Files stay on this deviceRuns entirely in your browserFree — no signup

Drop your file here or browse from your device

Accepts XLSX, XLS. Maximum input: 10 MiB. Files above this hard limit are rejected before local processing.

How to Convert

  1. Upload your Excel file (.xlsx or .xls) or drag it onto the page
  2. Pick the sheet to convert if the workbook has more than one
  3. Choose your delimiter and encoding options
  4. Download the CSV file, ready for databases, scripts, or any other tool

Features

  • Supports both .xlsx and .xls workbooks
  • Sheet selector for multi-sheet workbooks
  • Choose the delimiter (comma, tab, semicolon, pipe)
  • Select output encoding (UTF-8, UTF-8 BOM, Latin-1)
  • Download every sheet at once
  • Runs entirely in your browser — files never leave your device

Use Cases

  • Extract Excel data for import into a database or CRM
  • Convert a spreadsheet into a universal, tool-agnostic format
  • Feed Excel data into scripts, pipelines, or analytics tools
  • Turn a multi-sheet workbook into separate CSV files

Frequently Asked Questions

Does it work with both .xlsx and .xls files?

Yes. Upload either the modern .xlsx format or a legacy .xls workbook and convert any sheet to CSV.

Can I convert a workbook with multiple sheets?

Yes. Use the sheet selector to convert a specific sheet, or download every sheet as its own CSV file.

What happens to formulas?

Formulas are exported as their calculated values, so the CSV contains the results rather than the formula text.

Can I choose the delimiter and encoding?

Yes. Export with a comma, tab, semicolon, or pipe delimiter and choose UTF-8, UTF-8 with BOM, or Latin-1 encoding so the file imports cleanly elsewhere.

Is my spreadsheet uploaded to a server?

Never. The conversion runs locally in your browser, so your data stays private and the tool works offline.

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Need to convert the other way? Try our Csv To Excel