Task lists can be imported and exported as XML files.
To do this, go to the Project 
menu item and select the Task Lists folder in the file tree.
see Import and Export of Files.
Procedure: Importing a task list
1.Go to the Project menu item .
2.Select the folder Task Lists in the file tree.
3.Click on the Import icon 
in the command bar
or open the context menu by right-clicking on a task list and selecting the command Import.
Procedure: Exporting a task list
1.Go to the Project menu item .
2.Select the folder Task Lists in the file tree.
3.Click on the Export icon in the command bar
or open the context menu by right-clicking on a task list and selecting the command Export.
