Avogadro 1 is not under active development, the repository was archived in September 2021. Development of Avogadro 2 is being done at https://github.com/openchemistry/avogadrolibs. Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.
It would be nice to be able to export the property tables (bond, angle, torsion, ...). This was discussed a few years ago (https://sourceforge.net/p/avogadro/mailman/message/27569399/), but doesn't seem to be implemented yet.