Encoding Helper is a plugin which provides the following features:
Attempts to guess encoding of files
Show encoding on status bar
Convert to UTF-8 from a variete of encodings organized in a menu.
Convert to UTF-8 quickly from guessed encoding via menuitem
Convert to UTF-8 automatically when opening a file via some defined encodings found on User preferences
Install and read the nice formatted description here:
NOTE: Please note that by default encoding on status bar is false. You should set the preference to true via Preferences -> Package Settings -> Encoding Helper -> …