The file you need is your Personal Folders file (*.pst) It's where all the
mail, calendar, contacts etc are stored.

Take a look at these pages for info on Outlook data backup or transfer:
http://www.slipstick.com/config/backup.htm
http://www.howto-outlook.com/Howto/backupandrestore.htm
http://office.microsoft.com/en-us/as...771141033.aspx

--
Russ Valentine
[MVP-Outlook]
"Trish" wrote in message
...
Hi, I am having computer problems and have to reinstall my operating
system.
Before doing so, i am backing up all my files - however, could you please
tell me where my contacts, calendar etc is normally located, so that I can
make a copy of that too. it will save me so much time later on. Any
advice on better ways to do this would be most welcomed. When I
transferred
from an old pc to this new one, i originally exported my contacts to an
excel
file, but it seems to drop some important information, such as the email
address! someone then showed me where the whole contacts and calendar
file
is stored and we simply made a copy of that and used that instead. Hope
to
hear from you soon!