OnlyOffice and Collabora Online Experience at CERN

<!--HTML-->Collaboration features are nowadays a key aspect for efficient team work with productivity tools. During 2020, CERN has deployed and monitored OnlyOffice and Collabora Online solutions in CERNBox. CERN users working online can now choose OnlyOffice, which is the default application to work with OOXML files in CERNBox; and Collabora Online, which is the default application for ODF files in CERNBox. This presentation will focus on the technical aspects of deploying and maintaining OnlyOffice and Collabora Online within CERN, and the integration with our CERNBox infrastructure. It will also give an overview of the main advantages and disadvantages our user community has faced when interacting with these applications. The presentation will also describe how these new applications have been rolled out to the user community in terms of communication, training and user support.