While syncing my blackberry with outlook, I somehow managed to delete all past events in my outlook calendar. I have all the calendar entries in a blackberry backup (.ipd file) and can open them on my blackberry. I would like to export the calendar FROM my blackberry (or the ipd file) TO outlook (or google calendar, etc). Is this possible? What can I do? Thank you!

Restore your BB from the backup and then sync to Outlook. Most likely any updates since the back up will be lost on the BB so just make sure they are in Outlook.