How to install WIN8 theme.deskthemepack Why double-click invalid

.deskthemepack is a special theme package for windows8. I just downloaded the theme I want to change, but double click on it to show that MadobeYu.deskthemepack is invalid. How to solve it?

This theme pack needs to change the area to Japan to install it, and then change it back after loading it.

First open the Control Panel: change the date, time or number format and click into the area.

Then select the management in the three options in the area: then select the Unicode area to change to Japanese and the location to Japan.

Then restart the computer, and after entering again, my metro interface has no tiles. Then install the theme. Finally, it will be done after changing to China and restarting,