I am working on my product catalog, I have about 4500 products. I have an excel spreadsheet full of product descriptions. I've attached an excel file so you can see what I am working with.

When I turn this into a csv to upload to my cart I loose all of the extended description formating. How can I import this data without having in run into one long string?

I've tried replacing every "*" with "<br>" but it replaces the entire contents of the cell rather than just the "*". Any guidance would be appreciated.