Javascript treeview implemenation on current web

I need to add treeview functionality to an existing web which can allow for:
1) Treeview editable node, drag and drop, node edit;
2) Drag and drop word, excel, pdf
https://demos.telerik.com/jsp-ui/treeview/index
3) allow for arrow moving up and down to moving to the node and enter the document and save locally.