How to open hidden files using C#?

To open a hidden file, make it visible first. You can do this by removing the hidden attributes set on it -

FileInfo file= new FileInfo(Environment.CurrentDirectory + @"\myFile.txt");
file.Attributes &= ~FileAttributes.Hidden;

Now treat it as a normal text file and open it. Read the content -

using (StreamReader sr = new StreamReader("myFile.txt")) {
   string line;

   while ((line = sr.ReadLine()) != null) {
      Console.WriteLine(line);
   }
}

After reading, set the properties to hidden again to hide the file -

file.Attributes |= FileAttributes.Hidden;

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