Nextcloud Office Desktop
Nextcloud, Ionos, Open-Xchange and Office.eu • Cloud & Synchronization
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Nextcloud Office Desktop, also known as Euro-Office, is a free and open source office suite created by a coalition of European companies including Nextcloud, Ionos, Open-Xchange and Office.eu. It lets you write documents, build spreadsheets, design presentations, and edit PDF files while keeping your data on your own server or local computer.
The desktop app works fully offline and syncs with your Nextcloud cloud when you reconnect. It supports Microsoft Office formats like DOCX, XLSX, and PPTX, as well as open standards such as ODT, ODS, and ODP, making it a European alternative to Microsoft Office with real-time collaboration and digital signature support.
In This Post
Quick Start & Pro Tips
Connect to Your Nextcloud Server
- Open Nextcloud Office Desktop
- Go to Settings > Cloud Accounts
- Click Add Server and enter your Nextcloud URL
- Log in with your user credentials
- Select folders to sync for offline access
Reason To Do This: Keeps your files on your own server or local host instead of third-party clouds, giving you full data sovereignty while working offline.
Enable Digital Signatures
- Open the Security tab in the application
- Import a trusted digital certificate from your IT team
- Sign documents before sharing them
- Verify signatures on files you receive
Reason To Do This: Adds legal validity and security to documents, ensuring authenticity for business and institutional workflows.
Work with Microsoft Office Formats
- Open or import DOCX, XLSX, or PPTX files
- Edit content using the built-in writer, spreadsheet, or presentation tools
- Save changes in the original format or export to ODF and PDF
- Share files with Microsoft Office users without conversion issues
Reason To Do This: Ensures maximum compatibility with colleagues using Microsoft Office while preserving open standards like ODT and ODS.
Download Nextcloud Office Desktop
File size: 436 MB
OS support: Windows, macOS, Linux
Windows
Download Nextcloud Office Desktop 9.3.8 for Windows – Installer x64 (Exe)
Download Nextcloud Office Desktop 9.3.8 for Windows – Installer ARM64 (Exe)
macOS
Download Nextcloud Office Desktop 9.3.8 for macOS – Installer ARM64 (DMG)
Linux
Download Nextcloud Office Desktop 9.3.8 for Linux – Installer x64 (DEB)
Technical Specifications
| Software Name | Nextcloud Office Desktop |
|---|---|
| Version | 9.3.8 |
| License | Free (Open Source) |
| File Size | 436 MB |
| OS Support | Windows, macOS, Linux |
| Language | Multi-language |
| Developer | Nextcloud, Ionos, Open-Xchange and Office.eu |
| Homepage | https://nextcloud.com/office/ |
| Last Updated | November 14, 2026 |
Key Features
- Real-Time Collaboration: Edit documents together with colleagues using multi-user editing, cursor tracking, live comments, and version history. Changes sync across desktop clients, mobile apps, and browsers so teams can work in parallel without losing track of updates.
- File Compatibility: Open and save DOCX, XLSX, PPTX, ODT, ODS, and ODP files with maximum compatibility. The suite also handles legacy DOC, PPT, and XLS formats and exports presentations to PPTX, ODP, PDF, and images.
- Offline Work and Sync: Work on files locally without an internet connection, then save changes back to your Nextcloud server when you go online. You can connect the desktop app to multiple Nextcloud servers at once and choose which folders to sync.
- Data Sovereignty: Keep files on your own server, a local hosting provider, or your computer instead of third-party cloud servers. This European office suite ensures your documents remain under your control and independent of non-European providers.
- Security and Digital Signatures: Use the Security tab to apply digital signatures with a trusted certificate, set passwords, and restrict access to specific users. These features protect sensitive documents and verify authenticity for business and institutional workflows.
- Cross-Platform Desktop Apps: Download native installers for Windows, macOS, and Linux. The application uses fonts installed on your computer, including Microsoft fonts on Windows, with automatic fallback when a required font is missing.
- Smart Assistants: Access an artificial intelligence assistant and a smart picker in the web version to add links to internal documents or generate content. These tools streamline writing and help users find relevant files inside their Nextcloud environment.
- PDF Editing: Edit PDF files directly within the suite alongside text documents, spreadsheets, and presentations. This all-in-one approach eliminates the need for separate PDF software for basic editing tasks.
Installation Steps
Installation Steps
- Click the download button above to get the installer for your operating system
- Locate the downloaded file and double-click to run the installer
- Follow the on-screen installation wizard to complete setup
Compatibility: Compatible with Windows, macOS, and Linux desktop systems
Questions & Answers
Is Nextcloud Office Desktop free to use?
Yes, Nextcloud Office Desktop is free and open source software developed by a coalition of European companies.
Can I use Nextcloud Office Desktop offline?
Yes, the desktop application works offline and syncs changes back to your Nextcloud server when you reconnect to the internet.
What file formats does Nextcloud Office Desktop support?
It supports Microsoft Office formats such as DOCX, XLSX, and PPTX, as well as open standards like ODT, ODS, and ODP, plus PDF and legacy Office formats.
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