I reinstalled windows and saving lost,but I managed to recover them (file).The whole problem is how to use them!
Vague. What windows version, what game, what browser, what file type... Even your topic title is vague, unhelpful garbage.
If you can't be bothered to write even a semi-coherent, semi-explanatory description of the problem, nobody here should have to go through the trouble of guessing and troubleshooting. Asking for help is fine, but it requires give-and-take. And you didn't hold up your end.