Select your range first, then hit the A-Z (or Z<-A) button.

Personally, I don't trust those buttons. I always select my range and then go
through the Data|Sort menus.

Henry wrote:

For that the buttons do not work of reordering, in the panel of selection?
On having showed the panel of selection and visibility in excel, it(he,she)
has two buttons of ordering(arranging) in the low part, but these do not
execute anything, or I do him since(as,like) to be able to use them

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Dave Peterson