Edit-> Insert Organism.
Unlike the txt files which contain only bot DNA for a single bot, DBO files are binary files that contain a lot of living organism state like mutation rates, mutation history, age, parent info, number of offspring, ties, nrg, body, shell, slime, etc. and in the case of multi-bots, can contain many bot 'cells', not just one.
dbo files are also what teleporters use, so you can teleport it in also.