How to Integrate Copilot inside your desktop based application so you get the output from copilot and then modify it as per the code and map it to be used in some other application so that some manual work can be automated

Question

I need to use the ability of Copilot to automate the manual efforts of the team. Since AI is future - it can tell the directions of QA aspects using Copilot. I want to unleash this power and utilize it to save time on something which is meant to be saved like writing Test Cases for the tools and products' features in every sprint. this shall save time on writing test cases, increasing coverage from all permutations and combinations thereby reducing the efforts on reviews and peer to peer comms.

For e.g., I want to give a refined and detailed prompt - Verify the test cases of Facebook/ Whatsapp considering all the aspects Login, Performance and load various Navigations and functionality of Login, post, chat, reply, logout and do it all in EXCEL in defined formats of ADO - like below image

Now the list of all detailed test cases is returned from copilot which I will further map to ADO API via my application using my C# code. While I'm at it, I also need to review it once and can-do modification as a QA to insert some value adds.

This work instead will be done manually basis on data from google or directly using the copilot with multiple refined prompts. I need to directly integrate Copilot with my C# application and use copilot to get response at once in my pre-defined format