Excel ODS

Excel to ODS Converter

Convert Excel to ODS in your browser. Free, private, and fast. Keep rows, columns, and delimiters usable without sending files to a server.

Drag & drop your Excel file here

or

Max file size: 50 MB · Your file stays in your browser

Your file is processed locally in your browser — nothing is ever uploaded.

Why Convert Excel to ODS?

Converting Excel to ODS is a common task whenever a file has to work somewhere that expects the other format. Microsoft Excel's .xlsx format is the world's most widely used spreadsheet format. ODS is the open-standard spreadsheet format used by LibreOffice, OpenOffice, and Google Sheets. This converter makes the switch locally in your browser — nothing is uploaded.

Common use cases

  • You have a Excel file and need it in ODS format.
  • The target software or platform requires ODS but your file is in Excel.
  • Typical use of ODS: LibreOffice and OpenOffice-based workflows.
  • You want to reduce file size or improve compatibility without using desktop software.
Keep in mind: Some complex Excel formulas, macros, or proprietary chart types may not convert perfectly from or to ODS.

How to Convert Excel to ODS

  1. Upload or drop your Excel file into the converter above.
  2. Adjust any output settings for ODS if needed.
  3. Click Convert and download your converted file instantly.

About the Formats

Excel (Microsoft Excel Workbook)

Microsoft Excel's .xlsx format is the world's most widely used spreadsheet format. Excel files support multiple sheets, formulas, charts, pivot tables, conditional formatting, macros, and rich cell styling — making them the standard for financial modelling, data analysis, and business reporting.

Compatibility: Supported by Microsoft Excel, Google Sheets, LibreOffice Calc, Apple Numbers, and most spreadsheet applications.

ODS (OpenDocument Spreadsheet)

ODS is the open-standard spreadsheet format used by LibreOffice, OpenOffice, and Google Sheets. Part of the ISO-standardised OpenDocument Format, ODS stores spreadsheet data — cells, formulas, charts, and formatting — in an open, non-proprietary way, free from vendor lock-in.

Compatibility: Native in LibreOffice and OpenOffice. Supported by Google Sheets, Microsoft Excel 2007+, and most modern spreadsheet tools.

100% Private & Browser-Based

Your files never leave your device. All conversion happens locally in your browser — nothing is uploaded to any server. No sign-up required.

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Need the reverse?

ODS to Excel Converter

FAQ

Frequently Asked Questions

Yes — completely free with no sign-up, no watermarks, and no size limits for typical files.

Quality depends on the output settings. For lossless output, choose the highest quality setting available.

Your file is processed entirely within your browser using local JavaScript. It is never uploaded to any server. Only you can access your file.

For browser-based conversion, files up to 50 MB work best. Very large files may take longer depending on your device. We recommend splitting very large files before converting.

Currently, AintoB converts one file at a time to keep the browser-based process simple and private. Reload the page to convert another file.