how do you convert to view an AVI video
You need a Video Editing Software.
Here have a look and pick one you like after you read about them.
Handbrake supports this conversion (.ava > .mp4) and is the best free conversion software available IMO
HandBrake: Open Source Video Transcoder
I convert them to MP4 file so I can watch them on my phone. Always use Total Video Converter for Mac to convert videos. I have used it for several years and it works great!
FWIW, clicking on your link results in a warning:
I don't know why; however, one of the results was showing CNet downloads and they are not recommended as they may contain unwanted additional adware or malware as noted in the warning.
I second nbar's recommendation re Handbrake.
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