Calligra as a Linux alternative to Microsoft Office 365
Updated
Our verdict
Calligra can replace most of the core Office 365 functions for users who need basic word processing, spreadsheets, and presentations on Linux. It works well for small‑to‑medium projects, document sharing, and collaborative editing via cloud services. However, it lacks the full feature set of Office 365, especially advanced mail integration, real‑time co‑authoring, and the breadth of add‑ins. It is best suited for users who prefer an open‑source, KDE‑based suite and do not rely on the full Office ecosystem.
- License
- GPL-2.0-or-later
- Price
- Free
- Latest version
- 26.08.3 (November 5, 2026)
- Rating
- —

What works the same
- Supports .docx, .xlsx, .pptx formats for opening and saving
- Provides PDF export and import
- Offers cloud sync via external services (e.g., Nextcloud, Dropbox)
- Includes email client integration through KMail or other Linux clients
- Uses a consistent UI across applications
What is different
- No built‑in email client; relies on external mail apps
- No real‑time collaborative editing like Office 365’s co‑authoring
- Limited advanced formatting and template library compared to Word
- Fewer chart types and data analysis tools in Sheets
- No native Outlook integration or Exchange support
Opening your Microsoft Office 365 files
Calligra can open and save .docx, .xlsx, and .pptx files using the OpenXML format. Conversion quality is generally good for simple documents, but complex formatting, macros, or advanced features (e.g., VBA, complex charts, embedded objects) may not render exactly as in Office 365. Exporting to PDF works reliably.
Switching from Microsoft Office 365 to Calligra, step by step
- Export all Office 365 documents to PDF or keep them in .docx/.xlsx/.pptx format
- Install Calligra from your distro’s package manager or Flathub
- Open each file in the corresponding Calligra app (Words, Sheets, Stage) and review formatting
- Adjust any layout or style issues manually
- Save the corrected file back to .docx/.xlsx/.pptx or PDF
- Sync files to your preferred cloud service for sharing
Key features of Calligra
- Words: Intuitive word processor and desktop publisher
- Sheets: Fully-featured spreadsheet and calculation tool
- Stage: Flexible presentation application with plugin support
- Karbon: Vector drawing application for graphics and art
- Shared framework for consistent user interface across apps
- Available on major Linux distributions including Arch, Debian, Fedora, and Ubuntu
- Extensible via plugins for Stage and other components
How to install Calligra on Linux
flatpak install flathub org.kde.calligrasudo apt install calligrasudo apt install calligrasudo dnf install calligrasudo pacman -S calligraFrequently asked questions
Can Calligra handle complex Word documents with macros?
Calligra can open .docx files with macros, but it does not execute VBA macros. Complex macro‑driven documents will lose functionality.
Does Calligra support real‑time collaboration?
No, Calligra does not offer built‑in real‑time co‑authoring. You can share documents via cloud services, but simultaneous editing is not supported.
Is there a way to use Outlook with Calligra?
Calligra itself has no email client; you would use a separate Linux mail client (e.g., KMail, Thunderbird) and connect to Outlook via IMAP/POP3 or Exchange Web Services.