Hi Everyone,
Hope you are well and enjoying the course! 
If you are having issues understanding the validator, please take a look at the following post:
I too was facing the same problem expecting it to install some thing
In reality it won’t as not meant to install
Please see if the below steps help you
- Create a folder
- Cope the.exe to the above folder
- In CMD change directory to the folder you have the .exe
- execute your validation
Hope it helps !!!
Regards
Anindya
If you are still facing any issue, please do not hesitate to create a new topic
Kanika