/usr/share/app-install/desktop/avogadro:avogadro.desktop is in app-install-data 14.04.0.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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X-AppInstall-Package=avogadro
X-AppInstall-Popcon=76
X-AppInstall-Section=universe
Version=1.0
Name=Avogadro
Comment=Advanced molecular editor
Exec=avogadro %f
Icon=avogadro-icon
Terminal=false
Type=Application
Categories=Qt;Science;Chemistry;Physics;Education;
StartupNotify=true
MimeType=chemical/x-cif;chemical/x-cml;chemical/x-daylight-smiles;chemical/x-gamess-input;chemical/x-gamess-output;chemical/x-gaussian-log;chemical/x-mopac-out;chemical/x-pdb;chemical/x-xyz;chemical/x-gaussian-checkpoint;chemical/x-gaussian-cube;chemical/x-qchem-output;
X-Ubuntu-Gettext-Domain=app-install-data
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