Regex how to leave the last word in a string?

Question

Regular Expressions

Tell me how to leave the last word in a line with a regular expression?
In EXCEL, I got it using the formula:
\u003d SUBSTITUTE (PSTR (RIGHT (" "& SUBSTITUTE (A2;" "; REPEAT (" "; 999)); 999 * 1); 1; 999);" "; "")


A Here's how to do it regularly, unfortunately I don't know...

Answer 1

\s+(\S+)$
https://regex101.com/r/0jQ8Q4/1