I'll echo this here so hopefully you won't miss the answer:
See http://office.microsoft.com/en-us/ex...500511033.aspx

So basically, for the "old" save as workspace function, you choose the
[View] tab in Excel 2007, then use the "Save Workspace" in the Window group
in it.

Took a web search to find that because all routes to "workspace" in Excel
help led to the Publish as Document workspace stuff, which was doing none of
us any good at all.


"Chris Cullen" wrote:

I am trying to save four Excel workbooks as a Workspace. When I press the
Save button I get an error message that says "This extension cannot be used
with the selected file type. Change the file extension in the File text name
box or select a different file type by changing the Save as type.

The only option in Save As is Workspaces.


All four workbooks are saved as .xlsx files. Have I saved the workbooks in
the wrong format to use to create a workspace?

Thanks for any help.