By selecting "BPMN output of process diagram" from the Download menu in the flow view or Swimlane view, you can download the process diagram in BPMN 2.0 format (.bpmn). You can import the process into external tools or Systems that support BPMN.
Related: Download the process diagram as an image or the node list as a CSV
https://teachme.jp/8/manuals/49819352