It should be tough to have such a name. The most important systems like tax/insurance/airline booking are often the most unkind systems. If you're not familiar with computers, it's almost impossible to imagine the potential cause of problems is your name.
[0] https://www.bbc.com/future/article/20160325-the-names-that-b... > These unlucky people have names that break computers
"Nil" is probably safe, because the lisp curse will actually work in your favor.
Any tool that seeks to replace it would need to be as easy to use, as flexible. And preferably fewer bugs.
The problem is that the paradigm for spreadsheets works well for many projects, even if the implementations are crap.
[1] https://www.explainxkcd.com/wiki/images/5/5f/exploits_of_a_m...