There have been a few BlackBerry backup file (IPD files) editors over the years but MagicBerry is one of my favorites. I cannot believe I have not mentioned it earlier since it has been around for awhile now. It is more of an advanced tool but practically anybody can use it.
In a nutshell MagicBerry is the blackberry IPD reader that can read and extract the following database from the mobile IPD backup file: SMS Messages, Phone Call Logs, Address Book, Service Book, Tasks, memos, Calendar and export them. It also lets you split BlackBerry backup files along with editing service books.
If any of those things sounds like something you have needed to do I highly recommend downloading the free MagicBerry IPD reader at this link.