Describes the cause and action for error messages.
Error Message(English)：
does not contain numbers
Excel Manual ? Aprende con Alf
http://aprendeconalf.es/office/excel/manual/formulas.html
My excel reviewer (Presbitero) - SlideShare
https://www.slideshare.net/juliartsy/my-excel-reviewer-presbitero-10084459
EXCEL REVIEWER - SlideShare
https://www.slideshare.net/mcamariano/excel-reviewer
microsoft excel 2010 - Deleting numbers before a letter without ...
https://superuser.com/questions/1350063/deleting-numbers-before-a-letter-without-any-spaces
19 Top Tips on Excel's IF Functions and Formulas | Critical to Success
http://www.criticaltosuccess.com/19-top-tips-on-excels-if-functions-and-formulas/
Excel COUNTIF and COUNTIFS with OR conditions - Ablebits.com
https://www.ablebits.com/office-addins-blog/2018/03/28/excel-countif-countifs-or-conditions/
What is a Spreadsheet? - Computer Hope
https://www.computerhope.com/jargon/s/spreadsheet.htm
Excel Aptitude Questions | Microsoft Excel | Spreadsheet - Scribd
https://www.scribd.com/doc/66813341/Excel-Aptitude-Questions
Returning a value if three columns match in excel - Stack Overflow
https://stackoverflow.com/questions/18359430/returning-a-value-if-three-columns-match-in-excel