XnView is freeware software that allows you to view and convert graphic files. It's very fast and easy to use. But more importantly it supports more than 400 graphics formats!
* Import about 400 graphic file formats
* Export about 50 graphic file formats
* Multipage TIFF, Animated GIF, Animated ICO support
* Image IPTC, EXIF metadata support
* EXIF auto rotation support
* IPTC editing
* Resize,