C# - Convert URL to plain text

Hi,

I am trying to convert an URL format to plain text format by this way:

 string fileTxt = File.ReadAllText("test1.txt");

  MessageBox.Show(Uri.UnescapeDataString(fileTxt)); --> It doesn't work, it shows: oJ\x2BkTRbYHjeME72JTd\x2F\x2Fnb\x2BKt0RWeAmk8Gzw7dOc\x2FAM\x3D:1438850410112:hEj6agVToFMpYj7MufF9Qg\x3D\x3D

The content of "test1.txt": oJ\x2BkTRbYHjeME72JTd\x2F\x2Fnb\x2BKt0RWeAmk8Gzw7dOc\x2FAM\x3D:1438850410112:hEj6agVToFMpYj7MufF9Qg\x3D\x3D

If I use directly the string: MessageBox.Show(Uri.UnescapeDataString("oJ\x2BkTRbYHjeME72JTd\x2F\x2Fnb\x2BKt0RWeAmk8Gzw7dOc\x2FAM\x3D:1438850410112:hEj6agVToFMpYj7MufF9Qg\x3D\x3D")); ---> It works.


Could you let me know how to make string fileTxt = File.ReadAllText("test1.txt"); work?

Thank you!