Skip to main content

Convert · browser workspace

Convert CSV to Excel - CSV to XLSX Converter

Convert CSV files to Excel (.xlsx) format in your browser. Preserves data. No software needed. processed locally in your browser.

Quick start

Built for convert csv files to excel (.xlsx) format with proper formatting.

Everything runs in your browser, so you can test the workflow with sample data when available before using production files.

Output: A new file or report produced locally in your browser.

  1. 1Choose a supported file or use sample data when available.
  2. 2Set the options shown for this workflow.
  3. 3Process the file locally, inspect the result, and download a new copy.
Preparing your private workspace…

How to CSV to Excel

  1. 1Upload your CSV file
  2. 2File is automatically converted to Excel format
  3. 3Download your .xlsx file ready for Excel

Why Use This Tool?

  • ✓Excel Format - Create .xlsx files that open in Excel and Google Sheets
  • ✓Preserves Data - All values converted accurately with proper types
  • ✓No Excel Needed - Works in any browser
  • ✓Private & Secure - Files never uploaded to servers
  • ✓Instant Conversion - CSV to Excel without installing software

Frequently Asked Questions

Why convert CSV to Excel?

Excel files (.xlsx) support formatting, formulas, multiple sheets, and are more user-friendly. Converting CSV to Excel allows you to use advanced features and share files that open correctly in Excel or Google Sheets.

Can I add formatting after conversion?

Yes. The conversion creates a basic Excel file with your data. After downloading, open it in Excel or Google Sheets to add colors, formulas, charts, and other formatting.

Will my data types be preserved?

The tool preserves numbers as numbers and text as text. Dates in standard formats are recognized. You can adjust formatting in Excel after conversion.

Is this really free?

Yes. All processing happens in your browser, so there are no server costs.