SO !!! FOR MAC USERS TO IT ON GERMAN WANT: D
1. Remove the starter of Sims 3, right-click View then on packet content.
2. The best would be just to show grid, you can select them above 4, I hope understand what I mean: D
3. Then you should the "Contents" folder to see the top right of search ".reg" enter (the point)
4. Then top with "Browse" by "diesesn Mac" to "content" switch: D
then you see few files: D
5. In the file "update_always.reg" with the text editor and it should in the 4th row are "" Locale "=" en_US "" the changes it to "en_US" (without the quotes natürilich: D)
6. In "update_gameskeys.reg" open with Textediot entirely scroll down, would have to be (seen from below) "Locale" that you change again in "en_US" and even if her little high-peeping is "long" the changes it again in en_US
7. Hope could help you Mac users: D