EXR files are a bang out of raster image files that store images in the OpenEXR format.

They can be used both with lossy and lossless compression algorithms, making them very versatile.

How can you open EXR files?

File Header

A variety of graphics editing programs work with this filetype.

to take advantage of things like multi-layer setups and the like, a suitable editing program is needed.

What programs work with EXR files?

Common programs like Adobe Photoshop, Adobe After Effects and Adobe SpeedGrade can use this filetype.

Its worth noting that to do so, they need the ProEXR plug-in.

Programs like MacPhun ColorStrokes and Serif PhotoPlus can use this format without needing any add-ons.