Converting hex value in a file to a line terminator

I'm importing a file from a customer. When I open it up in Ultra Edit is see a hex 85 which shows up as … for the line terminator. I'm trying to convert it to a hex 0A. Anything that windows understands would be fine but 0A is common in many of our other communications. I'm using a .Replace on a StreamReader to replace the value but the output is not what I expect.
 
Replacing "\u0085" with "\u000a" results in … being replace by � which is represented in the hex as EF BF BD.
 
Replacing "\x85" with "\x0a" has the same results.

Any thoughts about what I'm doing wrong? Help is greatly appreciated!
 
// File = Path of original file
String file = File;

// Archive = Path where new file is to be placed
String archive = Archive

FileInfo fi = new FileInfo(file);
String name = fi.Name;

StreamReader sr = new StreamReader(file);
StreamWriter sw = new StreamWriter(archive + name);
 
// Both lines below result in a hex EF BF BD which shows up as … in the text
// String input = sr.ReadToEnd().Replace("\x85", "\x0a");
String input = sr.ReadToEnd().Replace("\u0085", "\u000a");
 
sw.Write(input);
sr.Close();
sw.Close();