Free ODS to Excel (XLSX) converter

Why convert ODS to XLSX?

People convert ODS to XLSX because ODS is LibreOffice’s spreadsheet format, and Excel users regularly cannot open it, while XLSX gives you real cells, number formats and multiple sheets in Excel.

How to convert ODS to XLSX

1. Choose your ODS file. Drop it on the box above, or tap to browse. You can pick several files at once.
2. Confirm the target is .xlsx. It is preselected when your browser can encode it; otherwise the closest available target is chosen. Adjust quality, size or the other options if you want to.
3. Convert and download. Press Convert, then Download. Your file stays on your device the whole time.

What is a .ods file?

ODS is the open spreadsheet standard used by LibreOffice and OpenOffice Calc. It holds the same sheets, formatting and formulas as XLSX, and Excel can open one, making it a good neutral choice when you do not want to require Microsoft Office.

What is a .xlsx file?

XLSX is the modern Excel workbook: multiple sheets, cell formatting, formulas and dates that know they are dates. It is what most people mean by “a spreadsheet”, and like DOCX it is really a ZIP of XML underneath.

What to expect from this conversion

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook.

Is it private?

Yes, by design. Every conversion happens inside your own browser using your device’s processor — there is no server that receives your ODS file, so there is nothing for anyone to store, scan or leak. You can confirm it yourself: open your browser’s developer tools, watch the Network tab while you convert, and you will see no upload.

Questions about ODS to XLSX

Is this ODS to Excel converter free?

Yes, completely. There is no account, no daily limit, no watermark and no premium tier.

Is my ODS file uploaded to a server?

No. The conversion runs inside your own browser using your device's processor. The file is read from your disk, converted in memory and saved back to your disk — nothing is transmitted, so there is nothing for anyone to store.

Can I convert ODS to Excel online without downloading software?

Yes. This is an online ODS to Excel converter that runs in your browser, so there is nothing to install and no app to trust with your files. It works the same on a phone.

What happens to the quality?

Cell values are carried across exactly as they appear. Formulas become their calculated results, and formats that hold only one table — CSV and TSV — take the first sheet of a multi-sheet workbook.

Can I convert several ODS files at once?

Yes. Select as many files as you like and they are converted one after another in a single tap, with a download for each and a zip of all of them.

Should I keep the original ODS file?

Yes — keep it, converting never touches it. The reason to make a copy in another format is that ODS is LibreOffice’s spreadsheet format, and Excel users regularly cannot open it.

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