SmartvCal is an application that will help you Import and Export the entries from your Calendar and Todo. [Check it out]
This application has two basic functions Export and Import. You can also send vcd file via EMail, Bluetooth, Infrared.
How to export: In order to export the records you need to choose the Export command. Then choose the date period, thus from the chosen date period you can mark the records that you want to export.
How to import: In order to import the records choose the Import command. Then choose the .vcd file to import. You can choose from the read files the files that you want to import. The records that already exist are marked with 'plus' in the Calendar and Todo application. If you try to import the existing records then SmartvCal will ask you how to process this record. (Skip, Skip all, Update, Update all, Add, Add all).