I can help if you're looking to convert them to .mov files.
There are a lot of shitty videos, but this is the best that I've found for a free app that can convert them and is relatively painless. https://www.youtube.com/watch?v=sX0FOiTXB-k
Follow the instructions & he provides the links in there as well. Hopefully this helps.
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Confidence is the feeling you have before you fully understand the situation.