Where is Cross-Entropy Loss Implementation video and code?

After the theory sessions on cross entroly loss, is there no hands on session on it>?
please refer to the screen shot attached which captures the list of lectures available to validate if it is supposed to be this way or some changes have been made?

Also i am having trouble with the boilerplate code provided. Its opening as a text file which i am not able to understand. how to open it as a collab file?
when i click on download button a web page opens as a text file.

Cross entropy implementation must be there in some of the modules. I guess it was in FFN Backprop.
For downloading the code, please try doing it by Right click–>Save as.