Form formats that LiveCycle Designer ES imports
You can import forms into LiveCycle Designer ES that were created in another form authoring application or an XForm XML application, or import spreadsheet data from Microsoft Excel 2002 or later by copying and pasting the content of the spreadsheet cells into a form. You can also import legacy forms as a starting point for creating new LiveCycle Designer ES forms. You can import files from these applications into LiveCycle Designer ES.
To import Output Designer files (IFD) into LiveCycle Designer ES, you must install Output Designer 5.4, 5.5, or 5.6 on the same computer as LiveCycle Designer ES.
LiveCycle Designer ES includes a number of options to handle imported files and render the best possible output. LiveCycle Designer ES preserves the layout of the imported form as much as possible and converts the elements into LiveCycle Designer ES objects.
See also 

Form formats that LiveCycle Designer ES imports