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.

CSV files are special text files that are quite common when dealing with spreadsheets. Here's how to open and make them.

Just curious - what recommendations do people have for an app that can handle large spreadsheets/csv files? Probably not massive by some people's standards, but dealing with 100-200mb csv files ...