At my place of business I am working on a system that outputs a pixel count based on color from a camera. This value is populated in an excel sheet and used to interpret real world characteristics that don't need disclosed. I would like to have that value be stored as a running list per camera iteration so that it can be analyzed for machine learning. More or less, snap an image, populate value in a new cell, snap another image, populated value in an additional new cell. Any thoughts on how to create such a list?