Couple of ways to get this.
If you've got the screen room to spare, you can simply add the "Web"
toolbar:
<View> <Toolbars>
And click on "Web".
This gives you, among other tools, the "Address" window, which will display
the full path of all *saved* WBs.
On the other hand, if your strapped for space like me, I added the "Address"
window to my *menu* bar, which always has room to spare.
The size of the window is adjustable, so you can try to display the entire
path at a glance.
This helps a great deal when you have 3 different servers storing varying
types of XL files.
To get the individual window, right click in the toolbar and choose
<Customize>,
Under the "Commands": tab, scroll down in the left window and click on
"Web",
Then, click on and drag the "Address" box to either your toolbar or your
menu bar.
NOW ... while the "Customize" window is *still* open, click on the "Address"
box to select it, then hover the cursor over the right margin until it
becomes a double sided arrow, then click and drag to adjust the size as you
wish.