The Search Exporter logs a HTTP 401 error when attempting to open an .amexp file and the Archive Manager default instance is configured to use SSL encryption.
Search Exporter is attempting to connect to Archive Manager via port 80, HTTP, and not port 443, HTTPS.
Open the .amexp file in a text editor,modify the port value, save the file and open again.
Default Value for non-SSL
Modified value to function with SSL
If you are using a port other than the standard port 443 you will have to use the appropriate port.