When you backup your blackberry phone the data is saved in .ipd format.
This file contains all the data which is there on your phone
sometimes you do need to open this file on your computer and manipulate the data.
use magicberry for do it
Magicberry is a free application which allows you to open and manipulate IPD files with ease. This application can extract
Phone Call Logs
memos and calendar data
You can also combine multiple ipd files using this free app.
download magicberry here