How do i install the programm?
there is no exe file nor do i find an instruction in the files
I assume you are talking about the Java application?
After you have unzipped it, it is in the *.jar format.
You can start it directly from the command line with
java -jar karatasi.jar
Precondition is that you have a Java runtime environment installed on your PC.
You can get a Java runtime environment at java.com