How do I export an .AVI from After Effects?

I see it nowhere in the render queue or even Adobe Media Encoder. I'm on a mac but I need to make .AVIs for use in a PPT on a PC for our salesforce who are on PCs.

If one can't do this from AE or AME, i could use a lead for a 3rd party app that can make them. I may have read that Microsoft provides a free .AVI maker. Not sure if that's true.

Thanks in advance for your help.