[{"data":1,"prerenderedAt":397},["ShallowReactive",2],{"navigation-docs_en":3,"/en/blog/euro-office-microsoft-365-alternative-2026-posts_en":51,"/en/blog/euro-office-microsoft-365-alternative-2026-surround-posts_en":386},[4],{"title":5,"path":6,"stem":7,"children":8,"page":25},"En","/en","en",[9],{"title":10,"path":11,"stem":12,"children":13,"page":25},"Docs","/en/docs","en/1.docs",[14,26],{"title":15,"path":16,"stem":17,"children":18,"icon":25},"Getting Started","/en/docs/getting-started","en/1.docs/1.getting-started/1.index",[19,21],{"title":20,"path":16,"stem":17,"children":-1},"Introduction",{"title":22,"path":23,"stem":24,"children":-1},"Migration Roadmap","/en/docs/getting-started/migration-fahrplan","en/1.docs/1.getting-started/2.migration-fahrplan",false,{"title":27,"path":28,"stem":29,"children":30,"page":25},"Technologies","/en/docs/technologies","en/1.docs/2.technologies",[31,35,39,43,47],{"title":32,"path":33,"stem":34,"children":-1},"Nextcloud","/en/docs/technologies/nextcloud","en/1.docs/2.technologies/1.nextcloud",{"title":36,"path":37,"stem":38,"children":-1},"Matrix / Element","/en/docs/technologies/matrix","en/1.docs/2.technologies/2.matrix",{"title":40,"path":41,"stem":42,"children":-1},"ONLYOFFICE","/en/docs/technologies/onlyoffice","en/1.docs/2.technologies/3.onlyoffice",{"title":44,"path":45,"stem":46,"children":-1},"Ubuntu Linux","/en/docs/technologies/ubuntu","en/1.docs/2.technologies/4.ubuntu",{"title":48,"path":49,"stem":50,"children":-1},"Keycloak","/en/docs/technologies/keycloak","en/1.docs/2.technologies/5.keycloak",{"id":52,"title":53,"authors":54,"badge":60,"body":62,"date":348,"description":349,"extension":350,"faq":351,"howto":361,"image":378,"meta":380,"navigation":381,"path":382,"seo":383,"stem":384,"__hash__":385},"posts_en/en/3.blog/16.euro-office-microsoft-365-alternative-2026.md","Euro-Office and Friends – Open-Source Office Alternatives at a Glance",[55],{"name":56,"to":57,"avatar":58},"Michael Wolf","/en/about",{"src":59},"/michael.webp",{"label":61},"Open Source",{"type":63,"value":64,"toc":330},"minimark",[65,69,78,83,88,91,95,98,101,104,107,110,114,211,215,225,229,251,255,258,262,294,298,301,305,323],[66,67,53],"h1",{"id":68},"euro-office-and-friends-open-source-office-alternatives-at-a-glance",[70,71,72,73,77],"p",{},"There's now a really good choice of open-source programs for texts, spreadsheets and presentations. ",[74,75,76],"strong",{},"Euro-Office"," is a new addition – a project several European companies are working on together. That's nice news for anyone looking for an alternative to Microsoft Office. Here's an overview of the options.",[79,80,82],"h2",{"id":81},"the-candidates","The candidates",[84,85,87],"h3",{"id":86},"libreoffice","LibreOffice",[70,89,90],{},"The classic for your computer. LibreOffice runs on Windows, macOS and Linux and is completely free. It can do a lot and is maintained by a large community. Ideal if you mostly work on documents on your own.",[84,92,94],{"id":93},"collabora-online","Collabora Online",[70,96,97],{},"Collabora brings LibreOffice to the browser. Several people can work on a document at the same time. It connects nicely with Nextcloud and is used in openDesk, for example.",[84,99,40],{"id":100},"onlyoffice",[70,102,103],{},"ONLYOFFICE has an interface that feels familiar to many Microsoft Office users. It works with DOCX, XLSX and PPTX by default and can also be integrated into Nextcloud.",[84,105,76],{"id":106},"euro-office",[70,108,109],{},"Euro-Office is a new project being driven forward jointly by European open-source providers. The goal is a browser-based office suite that fits well into existing platforms like Nextcloud. It'll be exciting to see how the project develops.",[79,111,113],{"id":112},"compared","Compared",[115,116,117,134],"table",{},[118,119,120],"thead",{},[121,122,123,126,128,130,132],"tr",{},[124,125],"th",{},[124,127,87],{},[124,129,94],{},[124,131,40],{},[124,133,76],{},[135,136,137,154,169,184,198],"tbody",{},[121,138,139,143,146,149,152],{},[140,141,142],"td",{},"Runs",[140,144,145],{},"on your computer",[140,147,148],{},"in the browser",[140,150,151],{},"in the browser and on your computer",[140,153,148],{},[121,155,156,159,162,165,167],{},[140,157,158],{},"Co-editing",[140,160,161],{},"–",[140,163,164],{},"✅",[140,166,164],{},[140,168,164],{},[121,170,171,174,177,179,182],{},[140,172,173],{},"Default format",[140,175,176],{},"ODF",[140,178,176],{},[140,180,181],{},"OOXML (DOCX etc.)",[140,183,181],{},[121,185,186,189,192,194,196],{},[140,187,188],{},"With Nextcloud",[140,190,191],{},"via sync folder",[140,193,164],{},[140,195,164],{},[140,197,164],{},[121,199,200,203,205,207,209],{},[140,201,202],{},"Open source",[140,204,164],{},[140,206,164],{},[140,208,164],{},[140,210,164],{},[79,212,214],{"id":213},"briefly-explained-odf-and-ooxml","Briefly explained: ODF and OOXML",[70,216,217,218,220,221,224],{},"Office documents can be saved in different formats. ",[74,219,176],{}," (extensions like .odt, .ods) is an open standard and LibreOffice's home format. ",[74,222,223],{},"OOXML"," (extensions like .docx, .xlsx) is Microsoft Office's format and is also standardised. All the programs mentioned here can handle both. If you exchange a lot of files with people who use Microsoft Office, DOCX is usually the most convenient.",[79,226,228],{"id":227},"what-suits-whom","What suits whom?",[230,231,232,239,245],"ul",{},[233,234,235,238],"li",{},[74,236,237],{},"Individuals and families:"," LibreOffice on your computer is often all you need.",[233,240,241,244],{},[74,242,243],{},"Small teams:"," Collabora or ONLYOFFICE in your own Nextcloud – then you can work together in the browser.",[233,246,247,250],{},[74,248,249],{},"Law firms and practices:"," An online option on your own server, so confidential documents stay in-house.",[79,252,254],{"id":253},"to-be-honest","To be honest",[70,256,257],{},"Very complex documents with macros or special layouts sometimes look a bit different in other programs. That's why a quick test with your own templates is worthwhile. For normal letters, spreadsheets and presentations, though, it works really well.",[79,259,261],{"id":260},"tips-for-switching","Tips for switching",[230,263,264,270,276,282,288],{},[233,265,266,269],{},[74,267,268],{},"Templates first:"," Set up letterheads, invoice and quote templates properly in the new program once. It saves a lot of time later.",[233,271,272,275],{},[74,273,274],{},"Check fonts:"," If documents look different, it's often because of missing fonts. These can usually be installed easily.",[233,277,278,281],{},[74,279,280],{},"Agree on a default format:"," Decide together whether you'll use DOCX or ODF as your standard.",[233,283,284,287],{},[74,285,286],{},"PDF for sending:"," For documents that should look exactly the way you designed them, PDF is always a good choice.",[233,289,290,293],{},[74,291,292],{},"Keyboard shortcuts:"," Many shortcuts are the same as in Microsoft Office – which makes getting used to it easier.",[79,295,297],{"id":296},"an-everyday-example","An everyday example",[70,299,300],{},"A small engineering firm works with lots of quotes and spreadsheets. It first installs LibreOffice on all computers and uses it for new documents. At the same time, online office is set up in Nextcloud so colleagues can work on calculations together. After a few weeks, the most important templates have been converted. Old files simply stay as they are and can be opened when needed.",[79,302,304],{"id":303},"conclusion","Conclusion",[70,306,307,308,311,312,317,318,322],{},"The choice of open-source office programs is big, and Euro-Office adds another project. With me, office documents run directly in your own ",[74,309,310],{},"cloud"," – more under ",[313,314,316],"a",{"href":315},"/en/pricing","Pricing",". And you'll find more alternatives under ",[313,319,321],{"href":320},"/en/alternativen","Alternatives",".",[70,324,325,326,322],{},"If you'd like to give it a try, I'm happy to help – ",[313,327,329],{"href":328},"/en/contact","just drop me a line",{"title":331,"searchDepth":332,"depth":332,"links":333},"",2,[334,341,342,343,344,345,346,347],{"id":81,"depth":332,"text":82,"children":335},[336,338,339,340],{"id":86,"depth":337,"text":87},3,{"id":93,"depth":337,"text":94},{"id":100,"depth":337,"text":40},{"id":106,"depth":337,"text":76},{"id":112,"depth":332,"text":113},{"id":213,"depth":332,"text":214},{"id":227,"depth":332,"text":228},{"id":253,"depth":332,"text":254},{"id":260,"depth":332,"text":261},{"id":296,"depth":332,"text":297},{"id":303,"depth":332,"text":304},"2026-06-16T00:00:00.000Z","Euro-Office is a new European office project. Here's an overview of open-source office programs and which one suits whom.","md",[352,355,358],{"q":353,"a":354},"What is Euro-Office?","Euro-Office is a new open-source project for office documents in the browser, with several European companies involved. It builds on existing open-source technology and is meant to fit well into platforms like Nextcloud.",{"q":356,"a":357},"Can I open my Word and Excel files with open-source office software?","Yes. LibreOffice, Collabora, ONLYOFFICE and Euro-Office can open and save DOCX, XLSX and PPTX. Very complex documents with macros or special layouts can show small differences, so it's worth testing with your own files.",{"q":359,"a":360},"What's the difference between ODF and OOXML?","Both are open file formats for office documents. ODF (for example .odt) is LibreOffice's default format. OOXML (for example .docx) is the format Microsoft Office uses. Modern open-source programs handle both.",{"name":362,"description":363,"totalTime":364,"steps":365},"Trying an open-source office program","How to find out which office program suits you.","P2W",[366,369,372,375],{"name":367,"text":368},"Collect typical documents","Pick out a few files you work with often, such as letter templates, spreadsheets and presentations.",{"name":370,"text":371},"Test the programs","Open and edit the files in LibreOffice or in an online option like Collabora or ONLYOFFICE.",{"name":373,"text":374},"Try collaborating","Edit a document together with a colleague in the browser.",{"name":376,"text":377},"Decide","Choose the program that feels best and adjust templates if needed.",{"src":379},"/img/blog/photo-1497032628192-86f99bcd76bc.webp",{},true,"/en/blog/euro-office-microsoft-365-alternative-2026",{"title":53,"description":349},"en/3.blog/16.euro-office-microsoft-365-alternative-2026","rTUS3bKEioOW18YOkm90bmqF8bqAvpDAZlnW7cA5qos",[387,392],{"title":388,"path":389,"stem":390,"description":391,"children":-1},"Europe Bets on Cloud and Open Source – What It Means for You","/en/blog/cada-eu-tech-sovereignty-package-public-sector-2026","en/3.blog/15.cada-eu-tech-sovereignty-package-public-sector-2026","The EU is working on new initiatives around cloud, AI and open source. A calm overview of what's behind them and what small businesses can take away.",{"title":393,"path":394,"stem":395,"description":396,"children":-1},"The EU AI Act for Small Businesses – Using AI at Work, Relaxed","/en/blog/eu-ai-act-microsoft-copilot-smes-august-2026","en/3.blog/18.eu-ai-act-microsoft-copilot-smes-august-2026","The EU AI Act sets rules for AI. What it means for Copilot, ChatGPT and friends in everyday office work and how to approach it calmly.",1792720367753]