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Home ›› Technology ›› Software ›› LibreOffice Criticizes Euro-Office for Microsoft Alignment

LibreOffice Criticizes Euro-Office for Microsoft Alignment

LibreOffice has accused Euro-Office of reinforcing Microsoft's vendor lock-in by defaulting to the OOXML format. Concerns are also raised about Euro-Office's ties to Russian developers, questioning its claims of European digital sovereignty.

iG
iGEN Editorial
June 11, 2026
LibreOffice Criticizes Euro-Office for Microsoft Alignment

LibreOffice has publicly criticized Euro-Office, alleging that it acts as a 'de facto ally' of Microsoft by defaulting to the proprietary OOXML document format. This move, according to LibreOffice, undermines efforts towards European digital sovereignty and reinforces vendor lock-in.

Sovereignty Concerns

The Document Foundation, the organization behind LibreOffice, has expressed concerns over Euro-Office's alignment with Microsoft's ecosystem. In an open letter, Italo Vignoli, a founding member, criticized Euro-Office for mimicking Microsoft's interface and workflows, which he argues creates a dependency on Microsoft's products. This dependency is seen as counterproductive to the sovereignty efforts that Euro-Office claims to support.

Security and Development Origins

Euro-Office's development origins have also come under scrutiny. The project is based on OnlyOffice, with up to 99% of its codebase traced back to developers in Russian time zones. This raises security concerns about potential vulnerabilities and the risk of malicious code insertion, which could undermine the project's sovereignty claims.

European Tech Firms Involvement

Despite these concerns, several European tech firms, including IONOS, Nextcloud, Eurostack, XWiki, OpenProject, Soverin, Abilian, and BTactic, are involved in the Euro-Office initiative. These companies aim to provide a sovereign alternative to Microsoft Office with a familiar interface to ease migration.

Implications for Enterprise Software Buyers

For enterprise software buyers and technology procurement leaders, the debate between LibreOffice and Euro-Office highlights the importance of evaluating software choices not just on functionality but also on the implications for vendor lock-in and digital sovereignty. The potential security risks associated with Euro-Office's development origins further complicate the decision-making process.

Aspect LibreOffice Euro-Office
Default Format Open Document Format (ODF) OOXML
Development Origin European Russian
Sovereignty Claims Strong Questioned

The ongoing rivalry between LibreOffice and Euro-Office underscores the complexities of choosing office software in a landscape where digital sovereignty and security are increasingly prioritized.


Sources: TechRadar – Main Feed

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