関連ワード:  how to add a file in google slides    how to insert a file in google slides    how to create a file in google slides    how to put a file in google slides    how to attach a file in google slides    how to add a audio file in google slides    how to add a file in google drive    how to add a file in google drive link using phone    how to add a file in google docs    how to add a file in google drive using phone