Convert rys to psd Online: rys2psd
You can use Tom's Editor to easily convert images from
Mamut .RYS to Adobe Photoshop
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Mamut is an image format with extension RYS.
PSD is in internal image format of Adobe Photoshop. It can store all the features offered by Photoshop, like layers and paths. Images can be compressed or not.