How to convert un-normalized table into the first normal form?

To convert an un-normalized table into the First Normal Form (1NF), ensure that each column contains atomic (indivisible) values, meaning there are no repeating groups or arrays. Each row must also be unique, which can be achieved by adding a primary key if necessary. Additionally, each column should have a unique name and contain values of a single data type. This process helps eliminate redundancy and improves data integrity.