The European Commission has spent years advocating for open standards, vendor neutrality, and digital sovereignty. The European Interoperability Framework explicitly recommends open formats for public sector digital services. The EU’s own Open Source Software Strategy calls for reducing dependency on proprietary technologies, and the Cyber Resilience Act itself is designed to address systemic risks from unaccountable technology dependencies. On March 3rd, 2026, the European Commission published a request for feedback on to the guidances to be provided in relation to the CRA, which must be provided through the linked spreadsheet in .xlsx format, a proprietary format that makes interoperability extremely difficult due to its ever changing and undocumented features. This is not a minor procedural oversight. It is a structural bias built into the process which sends out a clear message: full participation in EU policymaking requires a Microsoft licence. We ask the European Commission to lead by example by following its own guidances in relation to interoperability and at to least provide, alongside the proprietary format generated by the proprietary software and services they use, also an Open Document Format (ODF) file which is an actual interoperable and internationally recognised standard. While the Commission evaluates plans to upgrade its