Convert exr to psd Online: exr2psd

You can use Tom's Editor to easily convert images from
High dynamic-range (HDR) file format .EXR to Adobe Photoshop .PSD.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

EXR

High dynamic-range (HDR) file format is an image format with extension EXR.

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.