Danish 7-Zip
When I installed the latest version of 7-Zip (an open-source program for dealing with compressed file formats like ZIP and RAR), I was surprised to find that the default locale was set to Danish! Luckily, fixing it was relatively simple:

  1. Open the Værktøjer (Tools) menu and select Indstillinger (Options).

  2. Select the last tab, entitled Sprog (Language). Change your sprog to something you can read.