how to change line spacing

[Carol Granger Umberger King]

I want to change the line spacing in an email I received. I copied it to Notepad but cannot find any command to change it.

[Claudia Frank]

@Carol-Granger-Umberger-King

you need to be more specific about what you want to do
and keep in mind that notepad++ is an editor and not a
word processor like libre office writer or MS Office Word.

Cheers
Claudia