To generate the metadata and enterprise WSDL files for your organization:
Log in to your Salesforce account. You must log in as an administrator or as a user who has the “Modify All Data” permission.
From Setup, enter API in the Quick Find box, then select API.
Click Generate Metadata WSDL and save the XML WSDL file to your file system.
Click Generate Enterprise WSDL and save the XML WSDL file to your file system.