One of the most exciting feature in Ms Office is that it has Ribbon UI,you will get all useful menu at toolbar which comes in Ribbon view.
It supports almost all types of image formats and you can also view animation in it.It includes 2 themes.
You can do almost all those work which you do in any other basic image viewer.
You need to have Windows Xp, Windows Vista, Or Windows 7 with Microsoft .Netframework 3.5 +.
You may use following link to download :-