Excel count cells with expired dates

Describes the cause and action for error messages.

Error Message(English)：
count cells with expired dates

Resolution

Excel formula: Summary count by month with COUNTIFS | Exceljet
https://exceljet.net/formula/summary-count-by-month-with-countifs

How to calculate expiration dates in Excel? - ExtendOffice
https://www.extendoffice.com/documents/excel/3123-excel-calculate-expiration-date.html

How to identify or highlight expired or upcoming dates in Excel?
https://www.extendoffice.com/documents/excel/3537-excel-highlight-expired-and-upcoming-dates.html

Excel COUNTIF examples - not blank, greater than, duplicate or unique
https://www.ablebits.com/office-addins-blog/2014/07/02/excel-countif-examples/comment-page-3/

Examples of how to use ...
https://www.ablebits.com/office-addins-blog/2014/07/02/excel-countif-examples/comment-page-3/#counti・・・

Count if blank or not blank
https://www.ablebits.com/office-addins-blog/2014/07/02/excel-countif-examples/comment-page-3/#counti・・・

Count if greater than, less ...
https://www.ablebits.com/office-addins-blog/2014/07/02/excel-countif-examples/comment-page-3/#counti・・・

Excel Magic Trick 1163: COUNTIFS For Dates, When Dates Have ...
https://www.youtube.com/watch?v=RZWieEYzZNQ

https://www.youtube.com/watch?v=RZWieEYzZNQ