For Intelligence Servers on Linux machines, Strategy can only access files with the
file://protocol in localhost machine. If you want to access and import files of Windows or other Linux machines, the workaround is to mount the file folder to your Linux I-Server machine.

mkdir <folder name>
sudo mount -t cifs //<Windows Machine IP>/work /<folder name> -o username=<user name>,password=<user password>,vers=2.0
file://*
file:///<folder name>
/, then you can access files only under
/.
file:///<folder name>
/<file name>, or import files from Network Browser.
file:///opt/XXX.