A .csv file, which stands for "Comma-Separated Values," is a simple text file used to store tabular data. Each line in the file represents a row, and the values within that row are separated by commas. This format makes it easy to import and export data between different software applications, such as Microsoft Excel or Google Sheets. .csv files are widely used for data exchange because they are easy to read and write. They can contain various types of data, including numbers and text, and are often used in data analysis, databases, and spreadsheets. Their simplicity allows for compatibility across different platforms and programming languages.