Magnum Opus is the most comprehensive filetype collection together
with extensive AmigaGuide format documentation for the popular file
management program Directory Opus. Also included is a set of
replacement toolbar button images and some icons. You will need a
minimum of Directory Opus V5.11 however, owners of V5.5 or higher will
be able to take advantage of the extra features.

 Further details can be found in the AmigaGuide File in the Help drawer.