Learn how to convert CSV to Excel including XLS and XLSX formats using command line interface in Windows 11/10, the easy way.

How to convert an XLS file to CSV Let’s say you have the file clients.xlsx and you need it converted to clients.csv to be then uploaded as a client list in your new CRM tool.

To access any given file, you may need to convert it to a new format. For example, something your colleague created on a macOS word processor might not work on your Windows 10 computer.