I would like to fine the forced line break(LF)only not (not CR+LF) in the whole documents and replace the space.
I know that it is possible to see the marks but I want to find and replace that marks.
You might want to use “Replace in Files” dialog, find “n”, and replace with a space while “Use Regular Expressions” is checked. Click “>” button on the right side of the File Types drop-down list, and select “Current File”.