Open Mindmap (OPML) file to Create a New Project
Export QuickPlan Project to OPML File

QuickPlan also supports to export a project to a OPML file, which can be opened by other Mindmap apps or outline apps

Notes

OPML is a very simple protocol, very less information will be included in the OPML file, what information will be included in the OPML file created by other apps is out the control of QuickPlan. If some information you input in mindmap is not be included in the OPML file, you know of cause the information will not be included in QuickPlan project.

It's not a good practice to input task date and resource information in the mindmap app, because of preceding issue, and because that QuickPlan does the work to input task date and resource more efficiently and professionally