PDF Mikata

Convert CSV to Excel (.xlsx)

When you want a CSV to open cleanly in Excel.

Your files are never uploaded. Everything is processed on this device.

  1. 1Add your CSV
  2. 2Set the options
  3. 3Save the Excel file
Delimiter

The CSV is turned into an Excel file on this device. Nothing is sent anywhere.

Done

🔒 Your files are never sent to an external server. Everything is processed safely inside this browser.

How to use

  1. Select a CSV file or paste its content.
  2. Set the delimiter, the sheet name and other options.
  3. Tap "Make Excel file and save" and save.

How it works

  • A CSV is turned into an .xlsx file that opens in Excel.
  • The delimiter can be detected automatically.
  • With "Store numbers as numbers" the values can be used in Excel calculations.

Notes

  • Numbers that start with 0, such as 007, are kept as text.
  • No formatting or formulas are added. It is a simple, values-only Excel file.

FAQ

Is the pasted content sent anywhere?

No. Everything is processed inside the browser on your device.

Will Japanese text be garbled in Excel?

Excel files made with this tool show Japanese text correctly.

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Guides for this tool

How to Convert CSV to Excel (Free, Phone OK)When a CSV Looks GarbledWhen Leading Zeros DisappearConverting Tab- or Semicolon-Separated DataMaking the First Row BoldIs My CSV Uploaded?Turning Excel Back into CSV

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