How to Create a Customer Database in Excel - Microsoft Excel Full Tutorial

The database page always updates either at random places on the sheet of replace the old info, any idea as to why that would happen?

If I have 100s of customer data. When I take followup to them in certain interval I want to record multiple discussion points at each interval. Kindly suggest how to create that kind of form

Hi, Im using a Mac Excel. That's no Developer tag. How can I proceed?