Okay, let's try to open it with Java:
- Right click the file and press 'Open with...'.
- Select 'Choose other' if Java is not in the list.
- Choose 'More apps' and check if it's there.
- Choose 'Select another app in the computer' if it's still not shown.
- Select Java in this directory: C:\Program Files (x86)\Common Files\Oracle\Java\javapath
Let me know if it works!