About the project

Project Name: Interoperability improvements to LibreOffice Technology & Collabora Online

Development of a selection of missing interoperability features in LibreOffice Technology & Collabora Online.

Team: Tomaz Vajngerl,  Tor Lillqvist, Lubos Lunak and Dennis Francis

Collabora Online is an open source project built on the LibreOffice technology, aiming to bring a Word processor, a Spreadsheet application and a Slides editor to users, allowing secure and self-hosted collaborative editing.

One pain point is the complexity of the office suite domain: users expect that every possible aspect of the OOXML (DOCX, XLSX and PPTX) file format from Microsoft Office is also available in Collabora Online. The LibreOffice technology used by Collabora Online is the best office codebase outside Microsoft, but still it has feature gaps. Our proposal is to fund the development of a selection of such missing features in LibreOffice. This is meant to ease the transition of users from being locked-into a proprietary, Microsoft 365 to an Open Source, self-hosted collaborative editing service. As part of the process, we also plan to extend ODF to have features that allows data portability from OOXML based services with less formatting loss.

Website: https://collaboraonline.github.io/


Achievements from the first phase of the DAPSI programme

In the first phase of the DAPSI programme

Achievements from the second phase of the DAPSI programme




The DAPSI programme


    Tomaz Vajngerl

    Software engineer from Maribor, Slovenia. He started working on LibreOffice as volunteer in 2012 and later joined Collabora Productivity to hack on LibreOffice as my full-time job.

      Tor Lillqvist

      Software developer who works for Collabora Productivity. He has worked on LibreOffice and its predecessor for quite a long time. He lives in Helsinki, Finland.

        Lubos Lunak

        Software engineer from Prague, Czech Republic with a focus on Calc.

          Dennis Francis

          LibreOffice / Collabora Online developer with a focus on Charts.


          Collabora Productivity Limited
          Collabora Productivity created Collabora Online and is the driving force behind putting LibreOffice Technology in the Cloud.


          Interoperability improvements to LibreOffice Technology & Collabora Online