Describes the cause and action for error messages.
Error Message(English)：
if statement in excel is not working
worksheet function - Excel nested IF statement ...
https://superuser.com/questions/1244366/excel-nested-if-statement-not-working
microsoft excel - Cells show formula, not formula ...
https://superuser.com/questions/811265/cells-show-formula-not-formula-result
IF Function in Excel not accepting commas
https://superuser.com/questions/509742/if-function-in-excel-not-accepting-commas
Excel: If statement with #N/A
https://superuser.com/questions/476245/excel-if-statement-with-n-a
Excel Tip of the Week #53 - Causes of formulas not calculating - Blogs ...
https://ion.icaew.com/itcounts/b/weblog/posts/exceltipoftheweek53causesofformulasnotcalculating
Excel formulas not working: how to fix formulas not updating or not ...
https://www.ablebits.com/office-addins-blog/2016/02/03/excel-formulas-not-working/
Excel If Or Statement not working - Stack Overflow
https://stackoverflow.com/questions/29800051/excel-if-or-statement-not-working
Excel IF AND statement does not work
https://stackoverflow.com/questions/26950064/excel-if-and-statement-does-not-work
Excel formulas are not working - not recognizing numbers
https://stackoverflow.com/questions/27563883/excel-formulas-are-not-working-not-recognizing-numbers