Exporting/Importing a task means exporting/importing a calendar with one task only. Therefore, the exported/imported file format and the way to export/import a task is similar to the way to export/import a calendar with multiple events and tasks.
Right-click the task that you want to export, then select Export from the drop-down menu.
The Export Calendar form will appear.
Enter the file name and export format.
Clickto accept exporting the task.
Click OK in the confirmation message to save the exported file into your local disk.
This function allows importing a task from your local device into a specific calendar. For more details, see Importing a calendar.