Describes the cause and action for error messages.
Error Message(English)：
does not understand date format
Excel Power Query date format messup
https://superuser.com/questions/1303664/excel-power-query-date-format-messup
Excel won't format dates properly
https://superuser.com/questions/1223054/excel-wont-format-dates-properly
Have a slash-separated date recognized by Excel?
https://superuser.com/questions/1213862/have-a-slash-separated-date-recognized-by-excel
Why does Excel not recognise and format dates ...
https://superuser.com/questions/1077769/why-does-excel-not-recognise-and-format-dates-consistently
excel - Some dates recognized as dates, some dates not recognized ...
https://stackoverflow.com/questions/4660906/some-dates-recognized-as-dates-some-dates-not-recognized・・・
Excel not recognising Date Format
https://stackoverflow.com/questions/50854388/excel-not-recognising-date-format
Can not sort Oldest to Newest dates in Excel
https://stackoverflow.com/questions/37949158/can-not-sort-oldest-to-newest-dates-in-excel
Excel 2010 date formatting not working on some cells but on ...
https://stackoverflow.com/questions/26935742/excel-2010-date-formatting-not-working-on-some-cells-bu・・・
excel date formatting not working
https://stackoverflow.com/questions/28516923/excel-date-formatting-not-working