Comma-Separated Values, or CSV, is a simple file format used to store tabular data, such as spreadsheets or databases. Each line in a CSV file represents a row of data, and the values in that row are separated by commas. This makes it easy to read and write data in a structured way, allowing for easy import and export between different software applications. CSV files are widely used because they are easy to create and edit using basic text editors. They can be opened by various programs, including Microsoft Excel and Google Sheets, making them a popular choice for data exchange. The simplicity of the format allows for quick data manipulation and analysis.