Qu-Outil

Free CSV to Excel Converter

Convert CSV files into proper Excel workbooks — numbers and dates detected, columns sized, and several CSVs combined into one file with a sheet each. Free, and nothing is uploaded.

  • 100% free
  • No limits
  • No upload
  • No watermark
  • Works on mobile
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How it works

How to convert CSV to Excel

  1. 1

    Add CSV files

    Drag and drop one or more CSV files, or paste CSV text.

  2. 2

    Check the separator

    The separator is detected automatically — comma, semicolon, tab or pipe.

  3. 3

    Choose the format

    Save as XLSX, the older XLS, or OpenDocument ODS.

  4. 4

    Download

    Open the workbook in Excel, Google Sheets or LibreOffice.

Features

From raw CSV to a ready spreadsheet

For exports from banks, stores, CRMs, forms and databases.

Several CSVs, one workbook

Each CSV becomes its own sheet named after the file.

Numbers and dates detected

Values become real numbers and dates — or keep everything as text to protect IDs and phone numbers.

Readable columns

Column widths are set from your data, so nothing is hidden.

Private — nothing is uploaded

Your file is converted on your own device and never sent to a server. Safe for personal and business documents.

Free, no sign-up, no watermark

Convert as many files as you like. No account, no limits, no logo added.

Works on phone and computer

Use it in Chrome, Safari, Edge or Firefox on Android, iPhone, Windows or Mac — no software to install.

FAQ

CSV to Excel — FAQ

How do I convert CSV to Excel?

Add your CSV file above. It converts instantly — click Download Excel file.

Can I combine multiple CSV files into one Excel file?

Yes. Add several CSV files at once and each becomes a separate sheet in one workbook.

Why did my phone numbers lose their leading zero?

Choose “Keep everything as text” under Values. Then IDs, phone numbers and PIN codes stay exactly as written.

Does it handle semicolon-separated files?

Yes. The separator is detected automatically, or you can pick comma, semicolon, tab or pipe yourself.

Support

Help keep Qu-Outil free

I build and run these tools in my free time and keep them free for everyone — no ads, no sign-up. If they helped you, buy me a chai or coffee via Google Pay or any UPI app. Your support keeps me building more free tools. Completely optional.

Google Pay / UPI ID
samarthdalela@oksbi
☕ Pay ₹50 with UPI app

The button opens Google Pay, PhonePe or Paytm on your phone. On desktop, scan the QR.

Scan to pay ₹50

Works with any UPI app