If you've encountered a CSV file and you're unsure what they're for, the good news is they're pretty straightforward and easy-to-use with apps you already know.

How to Write a Data Table to a CSV File. The Comma-Separated Values file format is a standard format for packaging data to share among normally incompatible computer applications.

What makes a CSV file unique is the way its content is organized. Here's what you need to know about CSV files and how to use them.