Hi "Uncle Marvo",

Thanks for your answer:
> I've seen a couple of reasons for this - one is that the printer that is
> "attached" to that document is not available, on a network, the other is
> that there is a link to something it can't find. Is it either of those? Does
> Excel open quickly on its own, without directly opening a file?

I would tend to agree with you one point: The long opening time looks like
the duration of a network timeout. That said this applies to any document
from word / excel. So I would tend to exclude behavior linked to the document
content, but more something related to office or environment configuration...

I just did the following test:

Right clicked on Windows file explorer -> New -> Excel document

Then just click on this new empty document: Opening time like around a
minute, but excel is opened after 2 seconds without any document window
inside.

And from this intermediate state, if I do file => open => select manually
the document, the document openes in a second. And later, the initial
document open command tries to complete and warns that a document with the
same name is already opened...

So what I'm looking for if where I could chase for wrong links or netword
references in office / Word / Excel setup, or within default template
documents, etc...

I already tried to perform office diagnostic and repair without any success...

Thanks for any help there.
Unless this is a side effect from other applications setup, or a virus, but
then I don't know how to proceed.
(I have a Norton Antivirus corporate edition running on my PC)