Mostly, the language files are included in LifeManager installation file.
So, you don't need to download the language file seperately.
If you find incorrect words in LifeManager, please leave comment here.
[HOW TO ADD A LANGUAGE FILE]
1.Download Attached file and copy to c:/programs files/LifeManager2/language folder.
2.In the LifeManager, click Tools menu -> click Language... then select the languge file.