/usr/include/libgoffice-0.8/goffice/app/ is in libgoffice-0.8-dev 0.8.17-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/libgoffice-0.8/goffice/app/error-info.h
/usr/include/libgoffice-0.8/goffice/app/file.h
/usr/include/libgoffice-0.8/goffice/app/go-cmd-context-impl.h
/usr/include/libgoffice-0.8/goffice/app/go-cmd-context.h
/usr/include/libgoffice-0.8/goffice/app/go-conf.h
/usr/include/libgoffice-0.8/goffice/app/go-doc-control-impl.h
/usr/include/libgoffice-0.8/goffice/app/go-doc-control.h
/usr/include/libgoffice-0.8/goffice/app/go-doc-impl.h
/usr/include/libgoffice-0.8/goffice/app/go-doc.h
/usr/include/libgoffice-0.8/goffice/app/go-plugin-loader-module.h
/usr/include/libgoffice-0.8/goffice/app/go-plugin-loader.h
/usr/include/libgoffice-0.8/goffice/app/go-plugin-service-impl.h
/usr/include/libgoffice-0.8/goffice/app/go-plugin-service.h
/usr/include/libgoffice-0.8/goffice/app/go-plugin.h
/usr/include/libgoffice-0.8/goffice/app/goffice-app.h
/usr/include/libgoffice-0.8/goffice/app/io-context-priv.h
/usr/include/libgoffice-0.8/goffice/app/io-context.h
/usr/include/libgoffice-0.8/goffice/app/module-plugin-defs.h