Example of how to add a header row to the table data array, using my CSV-to-SortTable plugin for WordPress. Add this to your `functions.php` file.

csv-to-sorttable-add-header-row.php

<?php
/**
 * CSV to SortTable: Add Header Row
 *
 * @param  array $data
 * @return array
 */
function csv_to_sorttable_add_header_row( $data ) {
    $header_row = array( 'Column 1', 'Column 2', 'Column 3' );
    array_unshift( $data, $header_row );
    return $data;
}
add_filter( 'csv_to_sorttable_data_array', 'csv_to_sorttable_add_header_row' );

In response to support ticket: http://wordpress.org/support/topic/set-the-column-names-independently

Thank you, very helpful when hootsuite scheduled messages downloads as a csv with no header row.