/usr/include/OpenEXR/ is in libopenexr-dev 1.6.1-4.1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/OpenEXR/ImfArray.h
/usr/include/OpenEXR/ImfAttribute.h
/usr/include/OpenEXR/ImfB44Compressor.h
/usr/include/OpenEXR/ImfBoxAttribute.h
/usr/include/OpenEXR/ImfCRgbaFile.h
/usr/include/OpenEXR/ImfChannelList.h
/usr/include/OpenEXR/ImfChannelListAttribute.h
/usr/include/OpenEXR/ImfChromaticities.h
/usr/include/OpenEXR/ImfChromaticitiesAttribute.h
/usr/include/OpenEXR/ImfCompression.h
/usr/include/OpenEXR/ImfCompressionAttribute.h
/usr/include/OpenEXR/ImfConvert.h
/usr/include/OpenEXR/ImfDoubleAttribute.h
/usr/include/OpenEXR/ImfEnvmap.h
/usr/include/OpenEXR/ImfEnvmapAttribute.h
/usr/include/OpenEXR/ImfFloatAttribute.h
/usr/include/OpenEXR/ImfFrameBuffer.h
/usr/include/OpenEXR/ImfFramesPerSecond.h
/usr/include/OpenEXR/ImfHeader.h
/usr/include/OpenEXR/ImfHuf.h
/usr/include/OpenEXR/ImfIO.h
/usr/include/OpenEXR/ImfInputFile.h
/usr/include/OpenEXR/ImfInt64.h
/usr/include/OpenEXR/ImfIntAttribute.h
/usr/include/OpenEXR/ImfKeyCode.h
/usr/include/OpenEXR/ImfKeyCodeAttribute.h
/usr/include/OpenEXR/ImfLineOrder.h
/usr/include/OpenEXR/ImfLineOrderAttribute.h
/usr/include/OpenEXR/ImfLut.h
/usr/include/OpenEXR/ImfMatrixAttribute.h
/usr/include/OpenEXR/ImfName.h
/usr/include/OpenEXR/ImfOpaqueAttribute.h
/usr/include/OpenEXR/ImfOutputFile.h
/usr/include/OpenEXR/ImfPixelType.h
/usr/include/OpenEXR/ImfPreviewImage.h
/usr/include/OpenEXR/ImfPreviewImageAttribute.h
/usr/include/OpenEXR/ImfRational.h
/usr/include/OpenEXR/ImfRationalAttribute.h
/usr/include/OpenEXR/ImfRgba.h
/usr/include/OpenEXR/ImfRgbaFile.h
/usr/include/OpenEXR/ImfRgbaYca.h
/usr/include/OpenEXR/ImfStandardAttributes.h
/usr/include/OpenEXR/ImfStringAttribute.h
/usr/include/OpenEXR/ImfTestFile.h
/usr/include/OpenEXR/ImfThreading.h
/usr/include/OpenEXR/ImfTileDescription.h
/usr/include/OpenEXR/ImfTileDescriptionAttribute.h
/usr/include/OpenEXR/ImfTiledInputFile.h
/usr/include/OpenEXR/ImfTiledOutputFile.h
/usr/include/OpenEXR/ImfTiledRgbaFile.h
/usr/include/OpenEXR/ImfTimeCode.h
/usr/include/OpenEXR/ImfTimeCodeAttribute.h
/usr/include/OpenEXR/ImfVecAttribute.h
/usr/include/OpenEXR/ImfVersion.h
/usr/include/OpenEXR/ImfWav.h
/usr/include/OpenEXR/ImfXdr.h
/usr/include/OpenEXR/OpenEXRConfig.h