LaTex implementation

Hi there,
I tried to inplement your language tool in TexStudio, but every guide seems to be outdated or i just cant find the file
I just can not find the needed file to open the languagetool:

LanguageTool GUI (which is contained in LanguageToolGUI.jar in the .oxt file

I am refering to this instruction:
http://wiki.languagetool.org/checking-la-tex-with-languagetool#toc4
and this partiuclar order:

You should start LanguageTool GUI (which is contained in
LanguageToolGUI.jar in the .oxt file, which is simply a zip file) and
start it. Then simply open Options and select the option to run it as HTTP server. By default, it uses port 8081, which is also the default for TXS:

Thanks in advance,
Megratus

Found the mistake. Had not installed Java, my bad.