what is csv stands for?
A comma-separated values (CSV) file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. The use of the comma as a field separator is the source of the name for this file format. An official standard for the CSV file format does not exist, but RFC 4180 provides a de facto standard for many aspects of it.