Find Files exclude mask usage

I'm trying to exclude a directory in a file search. Can anyone give me an example of proper usage? I can't seem to get it right as it keeps including that file in the search. Thanks!

OK, I've checked and it is indeed confusing as you need to both exclude the folder and the files within the folder. I'll change this:
https://winscp.net/tracker/730

Meanwhile the syntax to use is: