Click the file preview and set the markers against the ruler to define the file
column properties. The orange arrow helps you refine the position.
The Field Separator and Marker Position fields are automatically filled with a series of
figures separated by commas.
The figures in the Field Separator are the number
of characters between the separators, which represent the lengths of the columns of
the loaded file. The asterisk symbol means all remaining characters on the row,
starting from the preceding marker position. You can change the figures to specify
the column lengths precisely.
The Marker Position field shows the exact
position of each marker on the ruler, in units of characters. You can change the
figures to specify the positions precisely.
To move a marker, press its arrow and drag it to the new position. To remove a
marker, press its arrow and drag it towards the ruler until a