Convert spu to psd Online: spu2psd

You can use Tom's Editor to easily convert images from
Spectrum 512 .SPU to Adobe Photoshop .PSD.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

SPU

Spectrum 512 is an image format with extension SPU.

PSD

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.