https://support.office.com/el-gr/article/%CE%94%CE%B9%CE%AC%CF%81%CE%B8%CF%81%CF%89%CF%83%CE%B7-%CE%BF%CE%BC%CE%B1%CE%B4%CE%BF%CF%80%CE%BF%CE%AF%CE%B7%CF%83%CE%B7-%CE%B4%CE%B5%CE%B4%CE%BF%CE%BC%CE%AD%CE%BD%CF%89%CE%BD-%CF%83%CE%B5-%CE%AD%CE%BD%CE%B1-%CF%86%CF%8D%CE%BB%CE%BB%CE%BF-%CE%B5%CF%81%CE%B3%CE%B1%CF%83%CE%AF%CE%B1%CF%82-3b03f3a0-d000-4f7c-9181-be4355959d90#bmcreate_an_outline_of_rows