regex replace syntax

I neuw

Using P++ in WIndows 10, cannot search and regex replace a space character with a newline (\n)
What am I missing?

Terry R

What am I missing?

Well, it could be anything, as we don’t know what P++ is, maybe you meant to say NPP or Notepad++.
A regex I’d use would be
Find What:\x20
Replace With:\n

But then be aware that a \n is not normal for a windows text file. Windows uses \r and \n normally. Unix and Mac use one of them each (different ones).

Possibly showing a bit more detail and examples if possible of what you saw when trying to do the replacement might help us to understand what could have gone wrong.

Terry