Send meeting details in emails rather than as an invite or ics-attachment

Internally, we all use Outlook and we send each other invites for meetings as well, which works great.

However, when external people are invited as well, they sometimes complain that they can’t open the ics-attachment. Apparently, they are not using a mail client with Calendar support.

Is there any way to quickly send out the meeting details in an email as text without having to type it all manually?