Request for help in visual basic to create automatic popups when reaching expiry date

Hey guys!

Hope all of you are doing well! I just joined this forum yesterday and Im a complete beginner when it comes to programming. Right now I've been trying to come up with a code/software whereby automatic popups can appear when the applicant's visa date expires. My supervisor told me this could be done using Visual Basic at Excel. I've been trying to read tutorials and watch videos on Youtube but I'm completely lost!

It would be great if you guys could help me out of this. I'm attaching a sample Excel file with what I've been working.

Thanks alot!

Cheers!