Is there something like an internal url by which an OLE embedded object is accessible.

I ask this in pursuit of Insert blank spreadsheet in text document and link calculations.
I don’t need it personally, but want to better unerstand.

The “url” in the topic might better be read as “path” …
Is there a way to create (e.g.) a linked formula, a linked datarange, a linked sheet in one OLE spreadsheet component linking to a different OLE object?