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.