Andy Fragen

<a href="https://wordpress.org/plugins/the-events-calendar" rel="ugc">The Events Calendar</a> allows for the import of calendar events via download of a generated iCalendar file. This generated file contains the <code>X-WR-CALNAME</code> header, which is a valid header.
Unfortunately Outlook chokes and will create a new calendar when it sees this header instead of adding the event(s) to the default Outlook calendar. This plugin removes that header from the generated iCalendar file.

The Events Calendar Outlook Import Fix

Fix import of calendar events from The Events Calendar to Outlook.

barclay_reg

Creates an iCal feed with <a href="https://wordpress.org/extend/plugins/wp-calendar/" rel="ugc">WP Calendar</a> events. 
The generated file contains iCal / RFC5545 / RFC2445 conform data, which can be imported in several Calendar applications like Outlook, iCal, Google Calendar.
WP Calendar 1.5.x and also older versions (like 1.4.x) are supported.
Based on <a href="https://wordpress.org/extend/plugins/ical-for-events-calendar/" rel="ugc">iCal for Events Calendar</a>.
Feed will be at http://your-web-address/?wp-calendar-ical
<h3>ToDo</h3>
<ul>
<li>Add option, to choose the datemode, when queried the events</li>
<li>add option, to choose the time method in iCal: UTC (default now), floating or th timezome, which is specified in wordpress itself</li>
</ul>

iCal for WP Calendar

An extension for the Wordpress plugin WP Calendar, which generates iCal / RFC5545 / RFC2445 conform files.

The Events Calendar Outlook Import Fix vs iCal for WP Calendar