That depends entirely on what mail/calendar program(s) your recipient is using. You didn't say.

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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Can I e-mail this monthly calendars so that somebody views it and add text or
> share it.
> To me file extention .ics cannot be viewed by somebody else.
> Please let me know how to share this calendar