Welcome to Microsoft Q&A forum.
Please check the following FAQ.
What should I do if I miss the deadline to export my code?
All code will be archived to a pre-defined GitHub repository. Customers will be able to find all the code that was previously on the MSDN Code Gallery within the archived GitHub repository.
I suggest you find the code from the links in here: MSDN Code Gallery Has Retired
The tag "csp-api" is used to discuss about Partner Center API related question, as this question is more relate to MSDN Code Gallery. I suggest you could provide feedback on https://aka.ms/sitefeedback.