The special characters in Excel can be understood in different ways. How to deal with it when using it depends on the person using it.
Special character in formula
In this example, we have legal issues, our sales have been requested by an investor, and we want to inform the investor that the document is protected by a copyright.
Our data looks like this:
Click on the middle of the data (1), type in =char(169) & "Copyright Jennifer Corporation 2014".
This is how to add copyright symbol to Excel formula. The same way you can add other symbols.