I have such characters in my notepad ++

When I try to copy the entire line, I actually copy everything up to "NUL":
File:1
What I want to do is replace those null to be nothing, so I can copy my entire string. Maybe there is some keyword that notepad ++ (or any other program that can help) will replace these characters? When I select it, use "Right Click" and then "clear" it disappeared, but I do not want to do it one by one.
I don’t care to remove the cause of this problem, just the effect (NULs)
null char notepad ++
user2618929 Oct 12 '13 at 10:04 on 2013-10-12 10:04
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