I was looking for further clarification as to what saving an excel as
filetype:= xlNormal means. I have been unable to find a definition that goes
beyond stating it is a normal workbook or that it's a constant equivalent to
-4143. What is a "normal workbook" exactly? I would like to have a better
understanding of what this means before I go ahead and use it.

The reason I ask is because I am working on updating some macros to save a
spreadsheet in a *.xls format (97-2003). This needs to run for users in
Office 2003 and 2007. I had been creating an if statement to check
application.version and running the appropriate syntax to save as *.xls until
I accidentily stumbled across another workbook that used filetype:=xlNormal
which runs in both versions and in both cases creates *.xls. Why does this
work?

Thank you in advance for your assistance.