Open file in C:\...

[an]

How is possible to load a spreadsheet in
C:\...\...\xpto.xls, between many files in same directory,
please?

Because I don't know another away, I use:

Through command bouton in form, run a macro with path,
wich run a query to ask us the name of file. But If we
cancel return an error.

1 - Is possible to invite this message?
2 - Hat is the more explicit away to do this?

Thanks in advance.
an