Describes the cause and action for error messages.
Error Message(English)：
not staying on home tab
microsoft excel - How do I bring back the ribbon ...
https://superuser.com/questions/417491/how-do-i-bring-back-the-ribbon-in-office-2010
Excel 2010: Home tab is blank
https://superuser.com/questions/281889/excel-2010-home-tab-is-blank
All Excel options are greyed out - Stack Overflow
https://stackoverflow.com/questions/39460807/all-excel-options-are-greyed-out
Show or hide the ribbon in Office - Office Support
https://support.office.com/en-ie/article/show-or-hide-the-ribbon-in-office-d946b26e-0c8c-402d-a0f7-c・・・
How to Change the Default View in Excel 2013 - Solve Your Tech
https://www.solveyourtech.com/change-default-view-excel-2013/
Word 2010 - it defaults to File Tab rather than Home Tab ...
http://www.msofficeforums.com/word/9003-word-2010-defaults-file-tab-rather-than.html
10 defaults you can change to make Excel 2016 work your way ...
https://www.techrepublic.com/blog/microsoft-office/10-excel-2016-defaults-you-can-customize/
How to Manage the Excel Ribbon: 4 Key Tips You Should Know
https://www.makeuseof.com/tag/excel-ribbon/
Where is Format Menu in Microsoft Excel 2007, 2010, 2013, 2016 ...
https://www.addintools.com/documents/excel/where-is-format-menu.html