Hi @DEBAL_DAS ,
I'm sure you must gone through Page Exporter Configuration Nodes specially design node
eg.
"geometrixx.clientlibs.js": {
"extension": "js",
"type": "clientlib",
"path": "/etc/designs/geometrixx/clientlibs",
"jcr:primaryType": "nt:unstructured"
}
Just in case if missed...