How to create a dropdown in Excel 2010
I have a similar post about making drop-down with Excel 2003, which has apparently become obsolete with the introduction of ribbon menu in Excel 2007/2010. Regardless of the changes, the general concept of creating a drop-down list in Excel 2010 is still the same as 2003: using Excel Data Validation List. The drop-down list is very useful in that it presents a limited number of options for users to select, users can’t enter their own input, thus limit potential errors and create more consistent output.