Describes the cause and action for error messages.
Error Message(English)：
conditional formatting not allowed in excel
microsoft excel - How do I use conditional ...
https://superuser.com/questions/1189656/how-do-i-use-conditional-formatting-of-a-cell-based-on-a-ran・・・
conditional formatting - Excel - if cell is empty ...
https://superuser.com/questions/878610/excel-if-cell-is-empty-and-if-cell-is-empty-colour-row
Can't insert cells in Excel 2010 - "operation not ...
https://superuser.com/questions/417196/cant-insert-cells-in-excel-2010-operation-not-allowed-error-m・・・
conditional formatting - Restricting symbols ...
https://superuser.com/questions/401450/restricting-symbols-allowed-in-cells-of-excel-spreadsheet
Conditional formatting greyed out in Excel ? AuditExcel.co.za
https://www.auditexcel.co.za/blog/conditional-formatting-greyed-excel/
Conditional formatting compatibility issues - Excel - Office Support
https://support.office.com/en-ie/article/conditional-formatting-compatibility-issues-ef68c97a-1b5e-4・・・
How to use conditional formatting in Excel 2016, 2013 and 2010
https://www.ablebits.com/office-addins-blog/2014/05/29/use-conditional-formatting-excel/
How to Fix Excel Conditional Formatting Duplicated Rules - YouTube
https://www.youtube.com/watch?v=6zao7jVpJdg
https://www.youtube.com/watch?v=6zao7jVpJdg