Regex Question

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Hello,
I am coming back to a project and I dont remember what the following
Regex says
I do know it removes all \r\n from the string, but I dont see how.
Can someone explain this one?

Regex re = new Regex(@"([\x00-\x1F\x7E-\xFF]+)",
RegexOptions.Compiled);
string op = re.Replace(FileToParse, "");

Thanks
Mike
.