Flat file software is a type of database that stores data in a text-based, tabular format. Unlike traditional relational databases, flat file databases are structured as a single data table without relationships between the data fields. This makes them fast and simple to access, but it also limits their capacity for complex data analysis. Flat file software is often used by businesses to store small amounts of data, such as account information, product catalogs, or customer contact details. It is especially useful when data needs to be updated regularly, as it allows users to quickly make changes without sacrificing flexibility.