This option provides a method for restoring the description of the permanent reference points (and associated transformation) from a formatted file. Typically this file will have been created previously by the 'Save permanent reference points' option (S). Note that DigImage automatically loads all this information from a binary file CalPnt2D.DIG in the current directory when DigImage is started; if the file can not be found, then DigImage assumes identity mappings. The use of this option will override these default values.