Someone on m.p.e helped me write an event macro, but when I try to
save it, I get the message:

The following features cannot be saved in a macro-free workbook:

* VB Project

To save a file with these features, click No, then choose a
macro-enabled File Type in the filetype list.

The filetype is .xlsx.

How can I get Excel to allow macros in all workbooks? I just want a
simple way to get it to stop complaining and run the macros.

I converted from Excel 2000 about a year ago. I never had any problems
with that version.