/usr/share/doc/libopenexr6/ is in libopenexr-dev 1.6.1-4.1.
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/usr/share/doc/libopenexr6/examples/
/usr/share/doc/libopenexr6/examples/drawImage.cpp
/usr/share/doc/libopenexr6/examples/drawImage.h
/usr/share/doc/libopenexr6/examples/generalInterfaceExamples.cpp
/usr/share/doc/libopenexr6/examples/generalInterfaceExamples.h
/usr/share/doc/libopenexr6/examples/generalInterfaceTiledExamples.cpp
/usr/share/doc/libopenexr6/examples/generalInterfaceTiledExamples.h
/usr/share/doc/libopenexr6/examples/lowLevelIoExamples.cpp
/usr/share/doc/libopenexr6/examples/lowLevelIoExamples.h
/usr/share/doc/libopenexr6/examples/main.cpp
/usr/share/doc/libopenexr6/examples/previewImageExamples.cpp
/usr/share/doc/libopenexr6/examples/previewImageExamples.h
/usr/share/doc/libopenexr6/examples/rgbaInterfaceExamples.cpp
/usr/share/doc/libopenexr6/examples/rgbaInterfaceExamples.h
/usr/share/doc/libopenexr6/examples/rgbaInterfaceTiledExamples.cpp
/usr/share/doc/libopenexr6/examples/rgbaInterfaceTiledExamples.h