Magento translation not working

Question

I've three store views : default, de for German and fr for French.
I've translated all the files inside app\locale\en_US in above two languages.
I've placed the respective translated file inside de_DE app\locale\de_DE for german translation and fr_FR app\locale\fr_FR : french translation.
Cleared the cache, still the it's translation is not reflecting.

I tried manually deleting cache from var/cache (this solution), but, is still not working.

Answer 1

Step by step :

1. Create two stores
2. Select Language for each store
   • Admin -> System -> Configuration
   • Select Store on top left corner listbox (current configuration scope).
   • Click General on left side bar
   • Select your language from "Locale Options" section.

Ps : Don't forget to save translated files with "UTF-8 Without BOM" option! ( if you aren't in China )