function parse_excel_string($string, $columnheadings = false, $delimiter = "\t", $enclosure = "\n") {
        $row_index = 0;
        $rows = array();
        $array_of_rows = explode($enclosure, rtrim($string));
        if(is_array($array_of_rows) && !empty($array_of_rows)) {
            if($columnheadings == true) {
                $headings = explode($delimiter, rtrim($array_of_rows[0]));
            }
            foreach ($array_of_rows as $row) {
                $row_values = explode($delimiter, rtrim($row));
                if($headings && is_array($headings) && !empty($headings)) {
                    for($i=0;$i<sizeof ($headings);$i++) {
                        $rows[$row_index][$headings[$i]] = $row_values[$i];
                    }
                } else {
                    for($j=0;$j<sizeof($row_values);$j++) {
                        $rows[$row_index][$j] = $row_values[$j];
                    }
                }
                $row_index++;
            }
            if($columnheadings === true) {
                unset($rows[0]);
            }
            $rows = array_values($rows);
            return $rows;
        } else {
            return false;
        }
    }