This one line of code prevents Excel from guessing the header during sort.
Even though it's only one line of code, I think it's useful, and I couldn't find it anywhere.
It calls the built-in Sort Dialog Box with header:=xlNo
It's also possible to make Excel always use the first line as the header by changing xlNo to xlYes.
On my computer, I changed the Sort menu option to run the above routine instead of calling the Sort Dialog in the usual way because I never want Excel to guess the header during sort.