In this spreadsheet, you can see all products and their features like the ASIN, Parent ASIN, title on Amazon, etc., all organized in a table. Here is where you can change the product title, the bullet points and the product description without having to enter in each product like in Amazon Seller Central.
The filter tools are very helpful to make the process easier.
Since it is a large table with a lot of columns, it is possible to only select the ones you are interested on seeing. By selecting and deactivating the lock, you can adjust the table the way you need or want to.