How do I open an ics file?

I’m running Windows XP. I’ve received some ics files, and haven’t yet found a way to open them. Trying to get Windows to find a program to do this and googling on how to open ics files have not helped, everything I’ve found is confusing to me. Can someone tell me what I need to do to open these files?

.ics is a calendar file. You will need a calendar manager such as outlook or exchange to open it.

They are text files, so if you want to look at the contents without the benefit of a friendly GUI, you can open them with an editor such as Notepad. The wiki entry has information on what the various fields mean.

If you have a Gmail account, you can email the files to yourself as attachments. When you view them through the website, it will automatically display an Add to calendar link.

Reported.

no points on the PAT.