Excel to ODS – Convert Excel to ODS Online Free

Use our free excel to ods converter to turn your spreadsheet into an ODS spreadsheet right in your browser. No signup, no software to install, no watermark — upload your file, pick the worksheet, and download the result in seconds. Your file never leaves your device because the whole conversion happens locally on this page.

Drop your Excel file here
or browse files — .xlsx, .xls, .csv

🔒 100% free & private — your file is converted in your browser and never uploaded to any server.

How to convert Excel to ODS spreadsheet

  1. Upload your Excel file — Drag your file into the box above or click to browse. We accept .xlsx, .xls, .csv files.
  2. Choose the worksheet — If your file has several worksheets, pick the one to convert. A preview of your data appears instantly.
  3. Convert and download — Click "Convert to ODS" — your ODS spreadsheet downloads immediately, ready to use.

Why convert Excel to ODS?

ODS is the open spreadsheet standard — perfect for LibreOffice and open-source workflows.

  • Open your Excel files in LibreOffice or OpenOffice without compatibility worries.
  • Switch to free, open-source office software while keeping your spreadsheets usable.
  • Archive spreadsheets in an open ISO-standard format instead of a proprietary one.

Which formats can you convert from?

XLSX to ODS

Upload a modern .xlsx workbook — the most common Excel format — and get your ODS in one click.

XLS to ODS

Have an older .xls file? It converts just as easily; legacy Excel formats are fully supported.

CSV to ODS

Comma-separated .csv files work too, so data exported from databases and apps converts directly.

Will my spreadsheet layout stay intact?

All worksheets, rows, columns and values are carried into the ODS file. Basic formatting transfers too; very Excel-specific features may be simplified by the open format.

Is it safe to convert Excel files online?

Yes. Unlike many online converters, this tool does not upload your file anywhere — the conversion runs entirely in your browser, so sensitive business data stays on your own device. (OpenDocument: OpenDocument.)

Tips for a perfect excel to ods conversion

  • The output is a real .ods spreadsheet with all your worksheets included.
  • Opens in LibreOffice, OpenOffice and Google Sheets.
  • Complex Excel-only features may simplify slightly — the data itself always transfers.

Related converters

Frequently asked questions

Is this Excel to ODS converter really free?

Yes. The converter is 100% free with no signup, no watermarks, and no limit on the number of files you convert.

Are my files uploaded to a server?

Your file is converted entirely in your browser with JavaScript. Nothing is uploaded to any server, so your data never leaves your device.

Which formats can I convert from?

This converter accepts .xlsx, .xls, .csv files and returns a real .ods spreadsheet you can open and keep editing.

Will my data stay intact?

Yes. All rows, columns and cell values are carried over into the new spreadsheet. Formatting from styled workbooks is preserved where the target format supports it.

Does it work on mobile?

Yes. The converter runs in any modern browser on desktop, tablet and mobile — no app or software installation needed.