src/DataExport/SourceResponse.php
public function reset()
    {
        if (!empty($this->aData)) {
            reset($this->aData);
        } elseif ($this->oSource instanceof \PDOStatement) {
            //  unsupported
        } elseif ($this->oSource instanceof \CI_DB_mysqli_result) {
            $this->oSource->data_seek(0);
        }
    }
public function reset()
    {
        if (!empty($this->aData)) {
            reset($this->aData);
        } elseif ($this->oSource instanceof \PDOStatement) {
            //  unsupported
        } elseif ($this->oSource instanceof \CI_DB_mysqli_result) {
            $this->oSource->data_seek(0);
        }
    }
Resets the pointer in the data set to the beginning