Outlook stores mail, calendars and contacts is a
.pst file in
C:\Users\<User Name>\AppData\Local\Microsoft\Outlook by default although it
can be changed by the user. An exception to this is if the mail account is set
to be available Off Line… in which case the file is an
With Outlook closed you can copy the file or…
From in Outlook (2010) choose File, Options, Advanced and select Export choose export to a file as a .pst… then select the mail account (or just calendar or individual mail folders or contacts), choose where to save the file no duplicates… Go!!