Set up a program on ExcelAlphabetize in an Excel program

[photodad]

I set up a program on Excell to list all my DVD disks, giving each a number.  I the past, if I wanted to find a movie alphabetically,  I highlighted th listin column. In the toolbar ther were 2 icons showing "A/Z or Z/A"  These icons have disappeared from the toolbar.  How can I get them bak?

[Salmon Trout]

Right click an empty part of the toolbar and see if the word "Standard" is checked.

[soybean]

What version of Excel?