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Converte

Convert CSV to XLSX

Drop your CSV spreadsheet in and download it as XLSX within seconds. There is no account to create and nothing to install, and you can convert as many files as you like.

Drag your files here

or click to pick them from your device

How to convert CSV to XLSX, step by step

  1. Select your CSV file

    Click the upload area or drag your CSV file straight onto it. You can drop several at once if you need to convert them all.

  2. Check the target is XLSX

    The output format is already set to XLSX. If you added several files and want a different format for each, switch to the "A format for each file" option.

  3. Press Convert

    Conversion runs on your own device, so it starts instantly and never depends on your internet speed or on a queue at some server.

  4. Download the result

    Hit Download and save your new XLSX file. If you converted several, you can grab them all together in a ZIP.

Why convert CSV to XLSX?

XLSX is far more compatible than CSV: virtually any device, program or website opens it with nothing extra installed.

About these formats

CSV

.csv

A plain-text table with values separated by commas. It is the format almost every program accepts for importing and exporting data.

More about CSV →

XLSX

.xlsx

Microsoft Excel's format since 2007. It stores formulas, multiple sheets and cell formatting.

More about XLSX →

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Frequently asked questions

Is converting CSV to XLSX free?

Yes, entirely. No accounts, no daily file limit and no watermarks on the result. The site is funded by the ads on the page.

Are my files uploaded to a server?

No. The CSV to XLSX conversion runs inside your browser, on your own device. The file never travels across the internet, so nobody can see it and there is no copy left to delete afterwards.

Is quality lost in the conversion?

No. XLSX stores the data without loss, so the result keeps exactly the detail of the original.

Can I convert several files at once?

Yes. Drop in as many as you like and they will be converted one after another. When they finish you can download them individually or all together in a ZIP.

Does it work on a phone?

Yes, on Android and iPhone, with no app to install. Just open this page in your phone browser.