Unfortunately we have over 4000 .ics files that we need to import into Outlook 2013. Each file is one event. What's the best way for doing this?
Given that the .ICS (or iCals) format is a textfile, I would merge all files into one .ICS file and import that one file.
Just open your .ics file and look at the layout. You can also read about it here: http://en.wikipedia.org/wiki/ICalendar
The wikipedia article is too long to quote, so thats why I haven't done that.