Multiple tasks can be imported from the clipboard or from a file
Importing from Clipboard
Select the text containing your tasks and copy it to clipboard (Command - C).
Select the menu option File > Import from Clipboard.
The tasks will be added to the end of the task list.
Note: Please make sure that there is only one task per line
Importing from File
Three formats are supported: text, comma-delimited values and property list.
From the menu select File > File Import.
Choose the file containing the tasks you wish to import.
1. Text file
This is the simplest format where the file only contains task names, in text format, one task per line.
2. Comma-delimited values (CSV) file
Import multiple fields per task, such as name and date added.
3. Property list (*.plist) file
any number of existing task fields in plist XML format