JSON Convert Tools

CSV to Excel Converter

Create a real .xlsx workbook from CSV rows without uploading data.

Local processing

Drop a file here, or paste your data. Maximum 10 MB. Text files must use UTF-8.

Ready when you are.

Your data is processed in your browser and is not stored on our servers.

What is CSV to Excel Converter?

Create a real .xlsx workbook from CSV rows without uploading data.

A real Office Open XML workbook is generated in the browser. All CSV cells are written as strings, preserving identifiers and preventing formula execution.

Why use CSV to Excel Converter?

Use this tool to inspect a small dataset or prepare data for another application without installing software. Processing takes place in this browser. No account is required.

How to use CSV to Excel Converter

  1. Paste your input, upload a file, or load Sample Data.
  2. Choose any applicable options and select Convert.
  3. Review the output, then copy or download it.

Example

Input

name,city,active
Ada,Pune,true
Lin,Tokyo,false

Output

Download converted.xlsx containing a Data worksheet.

Common problems

The first row is retained as data in the worksheet. CSV cannot express multiple sheets or styles. Output is .xlsx, not an HTML file renamed as Excel.

Frequently asked questions

Is my conversion data uploaded?

No. Conversion inputs and outputs remain in this browser. Contact form messages are handled separately by WordPress.

Can I process large files?

The default limit is 10 MB. Browser memory and data complexity can impose lower practical limits.

Do I need an account?

No account is needed to use this tool.

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