Data files are digital containers that store information in a structured format. They can hold various types of data, such as text, numbers, images, or even videos. Common examples of data files include text documents, spreadsheets, and image files. These files allow users to organize, retrieve, and manipulate data easily, making them essential for both personal and professional use. When you save a project on your computer, you create a data file that keeps all the relevant information together. Different software applications use specific file formats, like PDF for documents or JPEG for images, ensuring that the data can be accessed and understood by the right programs.