Convert XLSX to ODS in Seconds Without Losing Formatting

Convert XLS to ODS for LibreOffice and OpenOffice. Keep worksheets and preserve formatting, formulas, charts, and images as accurately as possible.

XLSX ODS

Drop your XLSX file here

Accepted formats: .xlsx

Size up to 100MB

Files deleted automatically

Secure upload (SSL)

Start converting your XLSX file now — it’s free

Features

  • ODS is an open standard (OpenDocument) – no vendor lock‑in
  • Full compatibility with LibreOffice, OpenOffice, and other free suites
  • Preserves formulas, charts, and cell styles during conversion
  • Smaller file sizes compared to XLSX in many cases
  • Ideal for sharing with users who prefer open‑source software
  • Free online conversion without registration or watermarks
  • Secure SSL encryption for all uploaded files
  • Files automatically deleted after processing
  • No access to your data – privacy guaranteed

Advantages of ODS Format

  • Truly open format – freely usable by any application
  • Excellent support in LibreOffice and Google Sheets
  • No subscription fees or licensing restrictions
  • Lightweight and efficient for complex spreadsheets
  • Retains most Excel formatting and formulas

When to Use XLSX → ODS

  • Collaborating with teams using LibreOffice or OpenOffice
  • Archiving data in a future‑proof open format
  • Reducing file size for email or cloud storage
  • Preparing documents for open‑source environments
  • Avoiding compatibility issues with non‑Microsoft tools

How to Convert XLSX to ODS

Convert your XLSX workbook to ODS in 3 simple steps. Fast, secure, and free.

1

Upload XLSX Workbook

Drag & drop your .xlsx file or click “Choose File”. Maximum size: 100MB.

2

Convert to ODS

We export your spreadsheet to ODS while keeping sheets, styles, and formulas.

3

Download ODS

Your ODS file will be generated and downloaded automatically in your browser.

Powered by LibreOffice Technology

Built on Open-Source LibreOffice

We convert XLSX to ODS using LibreOffice, a trusted open-source office suite. It helps keep the result consistent across popular spreadsheet apps.

Excellent quality

ODS is great for LibreOffice/OpenOffice and open-standard workflows. We preserve sheets, formatting, charts, images, and formulas when supported. Some Excel-specific features may render differently in ODS.

Reliable and Free

No installation and no account required. Convert files up to 100MB, and temporary files are cleaned up automatically after conversion.

The difference between XLSX and ODS formats

A simple overview of the features and benefits of the formats

What is XLSX?

XLSX is a spreadsheet file format developed by Microsoft, default for Excel since Office 2007. XLSX files are based on the Open XML standard and stored as compressed ZIP archives, which reduces file size and speeds up data processing. The format supports tables, charts, graphs, and complex mathematical formulas. XLSX files can also be opened in Google Sheets, LibreOffice, and Apple Numbers.

What is ODS?

ODS (OpenDocument Spreadsheet) is an open-source spreadsheet format developed by OASIS. ODS files are created in the Calc application included in LibreOffice and Apache OpenOffice. The format supports tables, charts, formulas, and macros for automating tasks such as data formatting and calculations. Thanks to its open standard, ODS is compatible with most spreadsheet programs, including Microsoft Excel and Google Sheets.

Trusted by users worldwide for fast XLSX to XLS conversions

Frequently Asked Questions

Quick answers about XLSX to ODS conversion, compatibility, and privacy.

Yes. The XLSX to ODS converter is free to use with no subscriptions.

On average, the process of converting XLSX to ODS takes around 10 minutes with a light server load.

ODS is the OpenDocument Spreadsheet format (ODF). It’s ideal for LibreOffice and OpenOffice users and for workflows that prefer open standards.

Yes. We keep cell styles, borders, number formats, and formulas. Some Excel-specific features may render differently in ODS depending on the app used to open the file.

Yes. Multi-sheet workbooks are preserved. Charts, images, and shapes are transferred when supported by the target format and the converter engine.

No. Excel VBA macros are not supported in ODS, so macro code won’t be preserved in the converted file.

You can upload and convert spreadsheets up to 100MB.

Yes. Uploads are protected with SSL encryption, and files are automatically deleted after conversion.

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