If you have any doubts relating to the tool , you can ask MagicalUnicorn
Since he is the moderator and I am just a member so he is more official than me ๐
Resource files are of .bin or .res extension , there is not much of a difference and both of them work the same,
I assure you that the tool is safe to use and is developed by Geekdoings's member ,
It's just that your PC does not recognize the tool , probably it's either your security settings...