The artificial complexity of OOXML files (the DOCX case)

The complexity of the OOXML format is linked to its design and was deliberately created to make the format more difficult for non-Microsoft software developers to implement. Compatibility issues are caused by a veritable “maze” of tags used even for the simplest content, which binds users to the Microsoft ecosystem in the first example of standard-based lock-in. The DOCX case To demonstrate the difference in complexity between the XML schemas of Writer and Word text documents in the ODF and OOXML formats, I used two classic English theatre plays: William Shakespeare’s Hamlet and Oscar Wilde’s The Importance of Being Earnest. I downloaded the text versions of these works from Project Gutenberg — a library of classic texts for which US copyright has expired — and deleted the introductions and conclusions added by Project Gutenberg, without making any other changes. I then repeated this process for both documents. I copied all the text and pasted it, without any formatting, into two newly created blank documents. For Writer, I used the template that I usually use for unstructured documents; for Word, I did not use a template. This means that, in Writer, the XML schema contains information about the template (margins, paragraph

LibreOffice turns 15: a celebration of freedom, collaboration and open technologies and standards

Fifteen years ago, we announced our ambitious plan to provide the world with a fully free and open office suite created by and for the community. Today, we are celebrating 15 years of LibreOffice — a milestone not only for the software itself, but also for the global movement that it represents. LibreOffice was born on 28 September 2010 when it was launched as a fork of OpenOffice. This was not just a technical split, but also a declaration of independence, transparency, and freedom. LibreOffice would be free: free to use, free to modify, and free from corporate constraints. From day one, our mission has been clear: to empower people through open technology. A community like no other LibreOffice has never been alone. Throughout its journey, it has been supported by a community of thousands of contributors and dozens of companies who have contributed to development, design, localisation, quality assurance and other services to support its growth. Many have simply dedicated their time, skills and passion to creating something unique and better for everyone. Over the years, the community has: Released dozens of major versions, each more powerful and significantly better than the last; Localised LibreOffice into over 120 languages,

The artificial complexity of OOXML files (the XLSX case)

The post, published on 18 July 2025, which explained why an artificially complex XML schema, such as that used by Microsoft 365 (formerly Microsoft Office) files, is in fact a subtle tool for locking in users because it is invisible and impossible to detect without in-depth study, was picked up by various IT media outlets. This was probably because it explained a problem that everyone faces without having the tools to solve it in a way that was accessible to everyone. Some of these articles sparked a debate between those who supported my thesis and those who defended Microsoft, the true champions of lock-in, who claimed that the complexity of the XML schema was not artificial but rather a reflection of the complexity of the documents themselves. This complexity relates to various factors, such as size (number of pages), structure (text, tables, graphs and images), content management (data entry by multiple people and systems) and customisation through metadata. These factors influence the management, classification and storage of the document itself. The different approaches to complexity management between ODF and OOXML However, the ODF and OOXML formats handle this complexity in completely different ways. In the first case, the XML schema

The Document Foundation announces LibreOffice 25.2.6

Berlin, 8 September 2025 – The Document Foundation announces the release of LibreOffice 25.2.6, the sixth maintenance release of the LibreOffice 25.2 family, available for download at www.libreoffice.org/download [1]. LibreOffice 25.2.6 is based on the LibreOffice Technology, which enables the development of desktop, mobile and cloud versions – either from TDF or from the ecosystem – that fully support the two ISO standards for document formats: the open ODF or Open Document Format (ODT, ODS and ODP) and the closed and proprietary Microsoft OOXML (DOCX, XLSX and PPTX). Products based on the LibreOffice Technology are available for all major desktop operating systems (Windows, macOS, Linux and ChromeOS), mobile platforms (Android and iOS) and the cloud. For enterprise-class deployments, TDF recommends a LibreOffice Enterprise optimized version from one of the ecosystem companies, with dedicated value-added features and other benefits such as SLAs and security patch backports for three to five years (www.libreoffice.org/download/libreoffice-in-business/). English manuals for the LibreOffice 25.2 family are available for download at https://books.libreoffice.org/en/. End users can get first-level technical support from volunteers on the user mailing lists and the Ask LibreOffice website: ask.libreoffice.org. Downloading LibreOffice All available versions of LibreOffice for the desktop can be downloaded from the same

LibreOffice project and community recap: August 2025

Here’s our summary of updates, events and activities in the LibreOffice project in the last four weeks – click the links to learn more… Every six months – in February and August – we release a new major update to LibreOffice. And on 20 August, LibreOffice 25.8 arrived with many new features, plus compatibility improvements and performance boosts. Check out this video for an overview (also available on PeerTube): Please confirm that you want to play a YouTube video. By accepting, you will be accessing content from YouTube, a service provided by an external third party. YouTube privacy policy If you accept this notice, your choice will be saved and the page will refresh. Accept YouTube Content One week after the release, we posted some stats. And at the end of the month, the first minor bugfix update was made available: LibreOffice 25.8.1. Meanwhile, the LibreOffice Asia Conference 2025 will take place in Tokyo in December, and the call for proposals is now open (until 16 September). Throughout the month, we posted regular articles about ODF, the Open Document Format: What’s new in ODF 1.3 and 1.4; Best practices for creating and editing ODF files; and Guide to migrating from proprietary

LibreOffice 25.8 Backgrounder

LibreOffice 25.8: a Strategic Asset for Governments and Enterprises Focused on Digital Sovereignty and Privacy Overview In a time when geopolitical tensions, data localization laws, and compliance risks are reshaping the IT landscape, LibreOffice 25.8 (released last week) stands out as a strategic choice. It’s a fully open source, locally run productivity suite designed for organizations that require full control over their software, data, and infrastructure. This version builds directly on priorities voiced by public administrations and large enterprises worldwide: protecting user data, reducing dependency on foreign vendors, and strengthening digital autonomy. Why Digital Sovereignty Matters For governments and enterprises, digital sovereignty is about more than philosophy. It’s about: National security: Reducing exposure to extraterritorial surveillance and software backdoors. Regulatory compliance: Meeting legal requirements like GDPR, national procurement laws, and IT localization mandates. Vendor independence: Avoiding forced migrations, aggressive licensing models, or unpredictable pricing from proprietary vendors. Strategic resilience: Keeping mission-critical systems operational without reliance on the cloud. LibreOffice 25.8 is purpose-built for these goals. Key Benefits in LibreOffice 25.8 for Institutions Privacy-First Architecture Zero telemetry: No background data collection. LibreOffice is entirely transparent and silent by design. Full offline capability: Every feature works without internet access, ideal for secure,