What is a .tix file?
When you pay for a video on a Partner's website, you are first served a .tix file. This is an empty file that triggers the download of the video (.divx file) when opened in the DivX Player. Once the video file has started download, the .tix file should disappear. Note that if you manually download your video from the link on the confirmation web page or from the link in the confirmation email, you will always initially get a .tix file.
What do you do with it?
Open it in the DivX Player (current version) to get your movie.