How to Create a CSV File. A CSV file is a text file that is formatted as a table. Each line has data that is separated from each other by commas. If you have records that you need to send to a ...

CSV files are most commonly encountered in spreadsheets and databases. You can use a CSV file to move data between programs that aren't ordinarily able to exchange data.

ASP.NET Core configuration providers read configuration data from common sources such as JSON files and databases. But you can use other sources by creating custom configuration providers.