You can create a new map based on a FreeMind file. MindManager supports file created with the latest official stable release of FreeMind.
Click the File tab, click Import, and then click Import FreeMind File.
In the Choose Location dialog, do one of the following:
To import a file on your system, choose Local.
To import a file stored in a cloud storage service, choose the service.
In the dialog, select the FreeMind to import.
Click Open.
Click the File tab, click Open.
Navigate to the folder that contains the FreeMind file.
In the list box next to the File name box, choose FreeMind Map File (*.mm).
Select the FreeMind map file.
Click Open.