Q: What version of SharePoint does this application work with?
A: File Navigator works with SharePoint Online, SharePoint 2013, 2016, and 2019.
Q: Does anything need to be installed or turned on at the Server? Are there any dependencies?
A: No. The Navigator is client-only code. No extra server code or configuration is required. The application uses the Client-Side Object Model to communicate with SharePoint. This is included and always on in every installation of SharePoint.