「所属組織」および「最終更新日時」のみの追加となりますが、よろしければ、下記修正をお試しください。

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修正対象プログラム:
mod/feedback/analysis_to_excel.php

修正箇所:
77行目

[ 修正前 ]
$fstring->anonymous_user = get_string('anonymous_user', 'feedback');
ob_end_clean();

[ 修正後 ]
$fstring->anonymous_user = get_string('anonymous_user', 'feedback');
$fstring->department = get_string('department');
$fstring->lastmodified = get_string('lastmodified');
ob_end_clean();

---------------------------------------------------

修正対象プログラム:
mod/feedback/analysis_to_excel.php

修正箇所:
242行目

[ 修正前 ]
    $worksheet->write_string($row_offset + 1, $col_offset, $fstring->course, $xls_formats->head2);
    $col_offset++;

    return $row_offset + 2;

[ 修正後 ]
    $worksheet->write_string($row_offset + 1, $col_offset, $fstring->course, $xls_formats->head2);
    $col_offset++;

    $worksheet->write_string($row_offset + 1, $col_offset, $fstring->department, $xls_formats->head2);
    $col_offset++;

    $worksheet->write_string($row_offset + 1, $col_offset, $fstring->lastmodified, $xls_formats->head2);
    $col_offset++;

    return $row_offset + 2;

---------------------------------------------------

修正対象プログラム:
mod/feedback/analysis_to_excel.php

修正箇所:
310行目

[ 修正前 ]
        $worksheet->write_string($row_offset, $col_offset, $shortname, $xls_formats->default);
    }
    return $row_offset + 1;
}

[ 修正後 ]
        $worksheet->write_string($row_offset, $col_offset, $shortname, $xls_formats->default);
    }

    $col_offset++;
    $worksheet->write_string($row_offset, $col_offset, $user->department, $xls_formats->default);

    $col_offset++;
    $params = array('feedback'=>$feedback->id,
                    'userid'=>$user->id,
                    'anonymous_response'=>FEEDBACK_ANONYMOUS_NO);

    $feedbackcompleted = $DB->get_record('feedback_completed', $params);
    $worksheet->write_string($row_offset, $col_offset, userdate($feedbackcompleted->timemodified), $xls_formats->default);

    return $row_offset + 1;
}