File menu
Add Action — Create a new action.
Add Project — Create a new project.
Add Folder — Create a new folder for organizing projects.
Add Single-Action List — Create a new list for keeping track of individual actions that don’t fit into projects.
New Window — Open a new window just like the frontmost one.
Close — Close the frontmost window. Even if you close the last remaining OmniFocus window, you can always just open a new one.
Import — If you used the Kinkless task-management system, you can move all of your projects into OmniFocus and say goodbye to the Sync button forever. If you have no idea what Kinkless is, you can safely ignore this command.
Export — Make a copy of your OmniFocus database somewhere on the disk. The copy can be opened by anyone with OmniFocus, without affecting that person’s own main OmniFocus database.
Synchronize with Server — If you have set up synchronization in the Sync preferences, coordinate with the server database and make sure that both sides have all of the recent changes you’ve made.
Synchronize with iCal — Take your contexts and synchronize them with the calendars you’ve set up in the OmniFocus iCal Sync preferences.
Back Up Database — Consolidate all of the entries in your OmniFocus database as one compact file, and save it somewhere for safekeeping. You can set up automatic database backups in the General preferences.
Revert to Database Backup — If you run into trouble with your OmniFocus database, you can always go back to an older, backed up version. Just choose the backup file you want, and your entire database is reverted to how it looked at the time you made the backup.
Rebuild Database — Analyze and consolidate all of the entries in your OmniFocus database to make sure they are consistent. This is essentially equivalent to backing up and then restoring your database. If you are having problems with your database, this may help.
Move Old Data to Archive — Store away some of your completed or dropped items in an archive, thus keeping your database slim and making OmniFocus faster.
Open Archive — See the old data you’ve archived.
Page Setup — Open the standard Mac OS X Page Setup window, where you can change some settings for printing (or exporting to a PDF file). These settings are saved even if you quit OmniFocus.
Print — Open the standard Mac OS X Print window, with a variety of options for printing (or creating a PDF file).