Hi,
Yes, we can import data into your Outlook Calendar (or Tasks) from Excel.
Step one:
Create the Excel file and save it as CSV format. Please note: There are
22 fields you can import into Outlook in this way. These are: Subject, Start Date, Start Time, End Date, End Time, All day event, Reminder on/off, Reminder Date, Reminder Time, Meeting Organizer, Required Attendees, Optional Attendees, Meeting Resources,
Billing Information, Categories, Description, Location, Mileage, Priority, Private, Sensitivity, Show time as.
Step Two:
Open outlook, choose File, Import and Export. Then select Import from another program or file, hit Next, then choose Microsoft Excel and hit Next again. Now locate the Excel file you created earlier, hit Next, select your Calendar, press Next again and check
that Outlook finds the correct Range Name in your Excel file. Now press Map Custom Fields to verify how Outlook is mapping your Excel column headers to its own Calendar Appointment fields, changing if necessary, then hit OK, then Finish.
Quote from:
http://blogs.technet.com/b/usefultechnology/archive/2005/05/11/404803.aspx
Regards,
George Zhao
TechNet Community Support