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Convert XLSX to CSV

Excel to CSV. Free, in your browser, in seconds — nothing is uploaded.

Drop a file here

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Choose the formats

Your file never leaves this device.

How to convert XLSX to CSV

  1. Drop your .xlsx file above, or click the box to browse for it.
  2. The target is already set to .csv. Change any option you like.
  3. Press Convert, then Download. The file stays on your device the whole time.

About Excel workbook

XLSX is Microsoft Excel’s workbook format: multiple sheets, formatting, formulas and real dates. It is what most people mean by “a spreadsheet”.

About Comma-separated values

CSV is a plain-text table: one row per line, values separated by commas. Every spreadsheet, database and programming language can read and write it.

What to expect

Cell values are carried across exactly as text. Formulas become their results, and only the first sheet is used for single-table formats like CSV.

Questions

Is XLSX to CSV conversion free?
Yes. Convert Files is free, with no account, no limits and no watermark.

Is my XLSX file uploaded?
No. The conversion runs inside your browser. The file is read from your device, converted in memory and saved back to your device. Nothing is sent to a server.

What happens to the quality?
Cell values are carried across exactly as text. Formulas become their results, and only the first sheet is used for single-table formats like CSV.

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How it works

Three steps, no account, nothing uploaded.

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