OpenEXR is the visual effects industry-standard floating point file format and the best format to use when working with 32-bit HDR imagery. Access all the capabilities of OpenEXR from within Adobe Photoshop, After Effects, and Premiere Pro using ProEXR. OpenEXR can support multiple layers of imagery, but Photoshop can't read or save layered EXR files...unless you have ProEXR. Store all your layers