Appendix C. Error Messages
To err is human, but most duly certified members of our species have a vested interest in setting their errors right, particular because other humans (bosses, for example) are likely to be rather displeased if they don't. And make no mistake - it's nearly a law of nature that in the course of your Excel activity you will make mistakes. Take it from the party of the first part.
Needless to say, Excel is well aware of the near inevitable, and equips its users with a range of tools and informational alerts that try and pinpoint errors and help turn them into usable data.
Now, there are errors and then there are errors, and the ways in which Excel responds to these will vary. In that regard, there are at least ...