Choose the directory and file specification of the data
  file you want to use by double-clicking, respectively,
  on the directory and file name you want.

  You can use the Filter box to limit the number of
  directories and files that are displayedin the
  Directories and Files windows, respectively.

  You can choose a data file by double-clicking on it, or
  by typing in the full specifications of the data file
  in the Selection box.