After you create the spreadsheet, go to "File" and choose "Save As." Click the drop-down menu labeled "Save as type" in the window that appears and choose "CSV (comma delimited)" from the list.

Learn how to open CSV files on Windows 11 using Excel, Notepad, Google Sheets, and more – step-by-step methods for any setup.

A CSV (comma-separated values) file is a text file in which information is separated by commas. CSV files are most commonly encountered in spreadsheets and databases. You can use a CSV file to ...

Since a CSV file is just a text file, it can loosely be created with PowerShell's Add-Content cmdlet. The Add-Content cmdlet can create text files and populate them with strings.