The Project Gutenberg FAQ - R-29

R.29. I've got the text file, and I can read it, but it seems to be double-spaced or it has control characters like ^J or ^M at the end of every line.

This is most often seen on Mac or Linux. If you want to dig into why this effect happens, see the FAQ "Why use a CR/LF at end of line?" [V.85].

Perhaps viewing it in a different editor or viewer will help, but it's usually easiest just to globally replace all of the control characters (if you see them) with nothing, or to replace all double line-ends with single line-ends.