We have found one software suitable in our database for this conversion.
The most likely hip to exr conversion that exists, is export of Houdini projects (.hip files) to OpenEXR format (.exr), probably as export of high dynamic graphics or video content.
As is the case with various project files, Houdini projects can only be exported using the original software.
Updated: November 6, 2023
HIP
Files with hip file extension can be found as projects saved in Houdini 3D animation tools.
EXR
An exr file extension is used for images stored in the OpenEXR Image Format that was developed by the Industrial Light & Magic. OpenEXR image format was going to public in 2003 and it is supported by popular graphics applications, such as Adobe Photoshop, Adobe After Effects, 3D Studio Max, Blender etc.