The Windows Editor application does not collect or save any user related data. The internet client is used for the Microsoft Adcertising SDK. For more information about the advertisement read the paragraph below.
The app Windows-Editor used an internet client for the Microsoft Advertising SDK. If you don't want this, you can buy the full version or you can disable the internet client in the settings (but in this case the app is also disabled). For more information about the Microsoft Advertising SDK follow the link below.