This video presented by Cris Ippolite makes a comparison between flat files and relational databases made with FileMaker Pro 10. It starts by showing flat files, which programs like Microsoft Excel use. Flat files have a big disadvantage: they cannot communicate with other files, even those with related data. If you wish to make your job easier, you should use relational databases. With databases, the tables communicate between one another. Once you store an entry in a table, you can use it in all other tables without the need to store it again. Relational databases eliminate redundant data entry and save time. All of this can be done with FileMaker Pro 10! Good luck!