patch https://api.seismic.com/integration/v2/teamsites//files//patch
This endpoint allows any of the file's properties to be modified including system properties such as the name, owner, description, as well as custom properties. The structure of the PATCH mirrors to the structure of the GET, so you can simply use the GET the get a body, modify any relevant fields (that are supported), then send the body via the PATCH. See the section on Patch Conventions for more information on working with PATCH.