Describes the cause and action for error messages.
Error Message(English)：
worksheet missing title bar
What To Do When Worksheet Tabs Go Missing | AccountingWEB
https://www.accountingweb.com/technology/excel/what-to-do-when-worksheet-tabs-go-missing
How To Restore/Disappeared Missing Sheet Tabs In Microsoft Excel?
http://www.repairmsexcel.com/blog/recover-missing-sheet-tabs-microsoft-excel
How to Get Those Vanished Tabs at the Bottom of an Excel Workbook ...
https://www.journalofaccountancy.com/issues/2010/feb/techqa1.html
How to Show and Hide the Worksheet Tabs in Excel
https://www.howtogeek.com/218611/how-to-show-and-hide-the-worksheet-tabs-in-excel/
How to Restore a Toolbar on Excel : Excelling at Microsoft Excel ...
https://www.youtube.com/watch?v=i9aOdxAZprc
https://www.youtube.com/watch?v=i9aOdxAZprc
Group Worksheets in Microsoft Excel; Timesaving Excel Tips
https://thesoftwarepro.com/group-worksheets-excel/
Excel Window, Workbook Window, Worksheet Window - go to home.htm
http://dmcritchie.mvps.org/excel/excelwindow.htm
MS Excel: Title Bar, Help Button, Zoom Control and View Buttons ...
https://www.javatpoint.com/excel-title-bar