Select "CSV (Comma delimited) (*.csv)" in the Save As Type drop-down box and then click "Save" to save the file as a CSV file. Click "OK" when Excel warns you that only the selected sheet will be ...

Select "CSV (Comma delimited) (*.csv)" from the list of potential file types. Choose the folder where you want to save the file from the small Explorer area at the top of the window.

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.