[Brian]

Dessmal, combining your thread with Jamie's, though you may be able to just zip up your database and send it off to the coworker.

They can open it with a double-click and copy items over as needed, though the simpler method will also send them any completed items in your database as well as the active ones.

If that's not desirable for any reason, you can use a slightly simpler method. Use the "All Items" perspective to show everything in your database, delete the items you don't want to send along, then quit OmniFocus. You can now zip up and mail off the remaining items.