How to upload, play & edit .MTS format video?

Hi, I have bought a Canon Vixia HF S10 camera and I wanted to know when you guys upload your videos to your computer from that camera does it come out in the .MTS file format? If so, how did you guys get it to play on your pc/laptop, on YouTube & edit it?

I’m having trouble uploading my vids from that camera to my laptop and I can’t seem to play the video on the laptop nor get it to upload to YouTube.

It would really mean a lot if you could help me out, cause I hope my dad didn’t waste money on buying that camera for my birthday and can’t even upload or play a single thing.

Thanks beforehand.