Describes the cause and action for error messages.
Error Message(English)：
highlight invalid dates
Pro tip: Use Excel's conditional formatting to highlight invalid dates
https://www.scoop.it/topic/excel-easy/p/4035902889/2015/01/24/pro-tip-use-excel-s-conditional-format・・・
Excel help 4 - IF function and nesting | Excel ... - Scoop.it
https://www.scoop.it/topic/excel-easy/p/4079583774/2017/05/30/excel-help-4-if-function-and-nesting
Text Functions in Excel | Excel EZ | Scoop.it
https://www.scoop.it/topic/excel-easy/p/4087442663/2017/10/24/text-functions-in-excel
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