Greetings,
Regarding changing languages for Office RT, please do the following (note: I cannot speak other languages so bare with me as all instructions will be in English.)
- Launch Word 2013 from the Start Screen.
- Tap the 3 dots in the upper right corner.
- Touch File
- Select Options
- Select English
- Select Set as Default.
If English does not show, follow steps 1-4 then do the following:
- Select the drop down [Add additional editing languages]
- Select the language desired (I'll use English for this example)
- Select Add.
- Click on Add more Display and Help languages with the language pack from Windows Language preferences.
- Click on Add a language.
- Click on Add.
- Select the new language.
- Tap Move up until it is at the top of the list
- Double tap the language to open it
- Touch Download and install language pack.
- Once the language is downloaded, click on the X to close the Language window.
- Under Display Language, select **English.**13. Click on Set as Default.
- Click on OK.
- Click on OK.
- Close Word 2013.
When you re-open Word, you will be in the language you chose.
Let me know if this works for you.