I probably should write this in multiple languages, but much like Autodesk screw the rest of the world! You all should be speaking English. England made us do it, well actually we Americans did it ourselves rejecting French, German, numerous native American languages, and other immigrant languages.
You may have noticed that some of the XML reports have english words in them. To get rid of them open this file in your favorite text editor:
Make sure to replace the Civil 3D version year with the one you are using. Then find the words you want to change. This will only change the header files, you would need to go in and modify the other xsl files to change all of them.