I just got the Vixia HF S100 and needed to get the files in a format for advertising. Club Neon can tell you a detailed protocol to make it work, but I'll share two tips. One: a local web guru told me you can just change the file type from .mts to mpeg4 (or however you spell that) and it will work.
I did not do that because I had already bought
AVS 4 You software which converts .mts files to anything you want. Not very expensive (I think it was $30?) and it makes good video, but the conversion process is slow, even on a really fast computer (i7 CPU). But the end product is good.
Example There are also some files you can download for free (but I can't find them now) that let Window Media player play .mts files directly. I did that but needed convert to upload to web, so don't remember where that files was, but google got me to it.