First you have to start Modelio by double-clicking on the Modelio shortcut. Once Modelio is started, go to 'File / Create a project...' or click on the [] button. This will open a Project Creation ...

Modelio XMI Import/Export lets you exchange UML2 models (and not BPMN models) between tools that support the import/export of XMI files. The supported formats are XMI EMF-UML2 v3.0.0, OMG2.1.1, OMG2.2 ...

We have evaluated some of the useful and open source modelling tool to create ArchiMate models and sketches that are used by hundreds of Enterprise Architects throughout the world.