There is no digital sovereignty without ODF - TDF Community Blog

Any other choice is a choice of dependence on a single vendor Digital sovereignty begins with the document format. Everything else – server location, hosting jurisdiction, procurement clauses – is downstream of this single decision. If the format is standard and open, the user controls the document. If the format is proprietary the vendor controls it, even when the file sits on the user’s own hard drive. This is why LibreOffice, and its derivatives such as Collabora Office and Online, are today the only legitimate choice for governments, supranational bodies, businesses and organisations that want to protect the digital freedom of their users. Only software based on the LibreOffice source code – the LibreOffice Technology – uses ODF as its native document format. Every document saved, stored, retained and exchanged in ODF remains the exclusive property of its author, and remains so over the years. ODF – Open Document Format, as the name says – was designed and developed in accordance with the characteristics of a true open standard: clearly documented, transparently developed by an independent body, properly versioned, built on existing standards, and stored in XML files that any user can read. None of this applies to OOXML. The