examine_text_data_file

Data_Reduction.examine_text_data_file(filename)

Examine a file to guide genfromtxt()

Things to look for:

* Is there a header line with column names? If not, use argument ``names``.
* Is the number of names equal to the number of columns? If not::
  - use argument ``names`` and ``skip_header=1``, or
  - use argument ``delimiter`` with a list of column widths
    and ``skip_header=1``.