internal void processFile(string filename)
{
string foo = "";
byte[] bytes = File.ReadAllBytes(filename);
string hex = BitConverter.ToString(bytes);
_hex = GeneralTools.ReplaceEx(hex, "-", " ");
Task t = Task.Run(() =>
{
foo = Encoding.ASCII.GetString(bytes).Replace((char)0, '.');
});
t.Wait();
_text = GeneralTools.ReplaceEx(foo, "?", ".");
}