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.

If you want to convert Google Earth KML files to Excel (XLS, XLSX) or CSV format, you can use these free converter software and online tools.

Creating CSV File With Excel If you have Microsoft Office installed, you can easily import or export CSV files from Excel using the method described by Microsoft.