How to get the Encoding of a Document with C#

If you ever need to get the Encoding of a document...
here is the code:

private static Encoding GetEncoding(string filename)
{
    using (var reader = new StreamReader(filename, Encoding.Default, true))
    {
        if (reader.Peek() >= 0)
            reader.Read();

        return reader.CurrentEncoding;
    }
}

Attribution:
https://www.codeproject.com/Tips/1231324/How-to-Get-a-Files-Encoding-with-Csharp