LibreOffice brands Euro-Office a ‘de facto ally’ of Microsoft’s lock-in strategy

LibreOffice brands Euro-Office a ‘de facto ally’ of Microsoft’s lock-in strategy

By Carly Page
Publication Date: 2026-06-09 14:27:00

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The Document Foundation accuses newly launched Euro-Office of undermining digital sovereignty by defaulting to Microsoft’s OOXML document format

The Document Foundation has taken a swing at Euro-Office, accusing the self-described sovereign productivity suite of doing Microsoft’s content lock-in strategy a favor while wrapping itself in the language of European digital independence.

The attack came from Italo Vignoli, a founding member of The Document Foundation, who published an open letter on Monday, just hours before after Euro-Office 1.0 debuted as what its backers describe as a “truly open” and sovereign alternative to Microsoft Office.

“In recent days you will have read various articles announcing the arrival of Euro-Office, which is being ‘marketed’ as the first open-source office suite developed in Europe,” he wrote. “We feel compelled — reluctantly, since open source should rest on…